diff --git a/static/js/12-calls.js b/static/js/12-calls.js
index a69dc6c..4587193 100644
--- a/static/js/12-calls.js
+++ b/static/js/12-calls.js
@@ -1,8 +1,14 @@
-// static/js/12-calls.js
 "use strict";
 window.Glow = window.Glow || {};
 Glow.calls = Glow.calls || {};
 
+Glow.calls.DEBUG = false;
+
+Glow.calls.debug = (...args) => {
+  if (!Glow.calls.DEBUG) return;
+  console.debug("[calls]", ...args);
+};
+
 Glow.calls.state = () => Glow.state.calls;
 
 Glow.calls.ensureState = () => {
@@ -33,6 +39,9 @@ Glow.calls.ensureState = () => {
   state.backendParticipants ||= [];
   state.scope ||= null;
   state.statusText ||= "Idle";
+  state.makingOffer ||= new Map();
+  state.ignoreOffer ||= new Map();
+  state.isSettingRemoteAnswerPending ||= new Map();
 };
 
 Glow.calls.scopeLabel = invite => {
@@ -73,7 +82,11 @@ Glow.calls.wsReady = () => {
 
 Glow.calls.sendSignal = payload => {
   const ws = Glow.calls.state().ws;
-  if (!ws || ws.readyState !== WebSocket.OPEN) return false;
+  if (!ws || ws.readyState !== WebSocket.OPEN) {
+    Glow.calls.debug("sendSignal skipped, ws not open", payload);
+    return false;
+  }
+  Glow.calls.debug("sendSignal", payload);
   ws.send(JSON.stringify(payload));
   return true;
 };
@@ -84,9 +97,30 @@ Glow.calls.replaceHttpWs = url =>
 Glow.calls.setStatusText = text => {
   Glow.calls.ensureState();
   Glow.calls.state().statusText = String(text || "");
+  Glow.calls.debug("status:", text);
   Glow.renderCallUi();
 };
 
+Glow.calls.browserSupportError = () => {
+  if (!window.isSecureContext) {
+    return "Voice calls require a secure https connection.";
+  }
+  if (!navigator.mediaDevices || typeof navigator.mediaDevices.getUserMedia !== "function") {
+    return "This browser does not provide microphone access support.";
+  }
+  if (typeof window.RTCPeerConnection !== "function") {
+    return "This browser does not support WebRTC voice calls.";
+  }
+  return "";
+};
+
+Glow.calls.isPolitePeer = peerId => {
+  const selfPeerId = String(Glow.calls.state().selfPeerId || "");
+  const otherPeerId = String(peerId || "");
+  if (!selfPeerId || !otherPeerId) return true;
+  return selfPeerId.localeCompare(otherPeerId) > 0;
+};
+
 Glow.calls.ensureRemoteAudioElement = peerId => {
   Glow.calls.ensureState();
   const state = Glow.calls.state();
@@ -101,6 +135,7 @@ Glow.calls.ensureRemoteAudioElement = peerId => {
   audio.dataset.peerId = String(peerId);
   Glow.els.remoteAudioContainer.append(audio);
   state.participantAudioEls.set(peerId, audio);
+  Glow.calls.debug("created remote audio element for peer", peerId);
   return audio;
 };
 
@@ -112,6 +147,7 @@ Glow.calls.removeRemoteAudioElement = peerId => {
   audio.srcObject = null;
   audio.remove();
   state.participantAudioEls.delete(peerId);
+  Glow.calls.debug("removed remote audio element for peer", peerId);
 };
 
 Glow.calls.syncRemoteAudioElements = () => {
@@ -122,6 +158,7 @@ Glow.calls.syncRemoteAudioElements = () => {
     const audio = Glow.calls.ensureRemoteAudioElement(peerId);
     if (audio && audio.srcObject !== stream) {
       audio.srcObject = stream;
+      Glow.calls.debug("bound remote stream to audio", peerId);
     }
   }
 
@@ -153,6 +190,7 @@ Glow.calls.upsertPeer = peer => {
     peers.push(normalized);
   }
   state.peers = peers;
+  Glow.calls.debug("upsertPeer", normalized);
 };
 
 Glow.calls.removePeerConnection = peerId => {
@@ -168,8 +206,12 @@ Glow.calls.removePeerConnection = peerId => {
 
   state.peerConnections.delete(peerId);
   state.remoteStreams.delete(peerId);
+  state.makingOffer.delete(peerId);
+  state.ignoreOffer.delete(peerId);
+  state.isSettingRemoteAnswerPending.delete(peerId);
   Glow.calls.removeRemoteAudioElement(peerId);
   Glow.calls.syncRemoteAudioElements();
+  Glow.calls.debug("removed peer connection", peerId);
 };
 
 Glow.calls.removePeer = peerId => {
@@ -177,6 +219,7 @@ Glow.calls.removePeer = peerId => {
   const state = Glow.calls.state();
   state.peers = (state.peers || []).filter(peer => peer.participantId !== peerId);
   Glow.calls.removePeerConnection(peerId);
+  Glow.calls.debug("removed peer", peerId);
 };
 
 Glow.calls.listOtherPeers = () => {
@@ -191,14 +234,21 @@ Glow.calls.ensureLocalAudio = async () => {
   if (state.localStream) return state.localStream;
 
   try {
+    Glow.calls.debug("requesting local microphone");
     const stream = await navigator.mediaDevices.getUserMedia({
       audio: true,
       video: false
     });
     state.localStream = stream;
+    Glow.calls.debug("microphone ready");
     return stream;
   } catch (error) {
+    Glow.calls.debug("getUserMedia failed", error);
     if (error?.name === "NotAllowedError" || error?.name === "PermissionDeniedError") {
+      const ua = navigator.userAgent || "";
+      if (/librewolf/i.test(ua)) {
+        throw new Error("Microphone permission was denied. In LibreWolf, click the lock icon in the address bar and allow microphone access for this site.");
+      }
       throw new Error("Microphone permission was denied.");
     }
     if (error?.name === "NotFoundError" || error?.name === "DevicesNotFoundError") {
@@ -222,12 +272,15 @@ Glow.calls.ensurePeerConnection = async peerId => {
     return state.peerConnections.get(peerId);
   }
 
+  Glow.calls.debug("creating peer connection", peerId);
+
   const pc = new RTCPeerConnection({
     iceServers: state.session?.iceServers || []
   });
 
   pc.onicecandidate = event => {
     if (!event.candidate) return;
+    Glow.calls.debug("ice candidate", peerId, event.candidate);
     Glow.calls.sendSignal({
       type: "ice",
       to: peerId,
@@ -240,11 +293,13 @@ Glow.calls.ensurePeerConnection = async peerId => {
   pc.ontrack = event => {
     const stream = event.streams?.[0];
     if (!stream) return;
+    Glow.calls.debug("received remote track", peerId, stream);
     state.remoteStreams.set(peerId, stream);
     Glow.calls.syncRemoteAudioElements();
   };
 
   pc.onconnectionstatechange = () => {
+    Glow.calls.debug("pc connection state", peerId, pc.connectionState);
     const bad =
       pc.connectionState === "failed" ||
       pc.connectionState === "disconnected";
@@ -253,7 +308,18 @@ Glow.calls.ensurePeerConnection = async peerId => {
     }
   };
 
+  pc.onsignalingstatechange = () => {
+    Glow.calls.debug("pc signaling state", peerId, pc.signalingState);
+  };
+
+  pc.oniceconnectionstatechange = () => {
+    Glow.calls.debug("pc ice connection state", peerId, pc.iceConnectionState);
+  };
+
   state.peerConnections.set(peerId, pc);
+  state.makingOffer.set(peerId, false);
+  state.ignoreOffer.set(peerId, false);
+  state.isSettingRemoteAnswerPending.set(peerId, false);
 
   const stream = await Glow.calls.ensureLocalAudio();
   const existingTracks = pc.getSenders().map(sender => sender.track).filter(Boolean);
@@ -268,14 +334,39 @@ Glow.calls.ensurePeerConnection = async peerId => {
 };
 
 Glow.calls.makeOfferTo = async peerId => {
+  Glow.calls.ensureState();
+  const state = Glow.calls.state();
+
+  Glow.calls.debug("making offer to peer", peerId);
   const pc = await Glow.calls.ensurePeerConnection(peerId);
-  const offer = await pc.createOffer();
-  await pc.setLocalDescription(offer);
-  Glow.calls.sendSignal({
-    type: "offer",
-    to: peerId,
-    sdp: offer.sdp
-  });
+
+  if (pc.signalingState !== "stable") {
+    Glow.calls.debug("skipping offer because pc not stable", {
+      peerId,
+      signalingState: pc.signalingState
+    });
+    return;
+  }
+
+  try {
+    state.makingOffer.set(peerId, true);
+    const offer = await pc.createOffer();
+    if (pc.signalingState !== "stable") {
+      Glow.calls.debug("skipping localDescription because signaling changed", {
+        peerId,
+        signalingState: pc.signalingState
+      });
+      return;
+    }
+    await pc.setLocalDescription(offer);
+    Glow.calls.sendSignal({
+      type: "offer",
+      to: peerId,
+      sdp: pc.localDescription?.sdp || offer.sdp
+    });
+  } finally {
+    state.makingOffer.set(peerId, false);
+  }
 };
 
 Glow.calls.callAllPeers = async () => {
@@ -288,29 +379,42 @@ Glow.calls.callAllPeers = async () => {
   for (const peer of peers) {
     try {
       await Glow.calls.makeOfferTo(peer.participantId);
-    } catch (_) {}
+    } catch (error) {
+      Glow.calls.debug("makeOfferTo failed", peer.participantId, error);
+    }
   }
 };
 
 Glow.calls.fetchGroupCallSession = async scope => {
+  Glow.calls.debug("fetchGroupCallSession", scope);
+
   const data = await Glow.apiRequest("/api/group-calls/token", {
     method: "POST",
     headers: { "Content-Type": "application/json" },
     body: JSON.stringify(scope)
   });
 
-  const helperResp = await fetch(`${data.calls_base}/api/call/session`, {
-    method: "POST",
-    headers: { "Content-Type": "application/json" },
-    body: JSON.stringify({ token: data.token })
-  });
+  let helperResp;
+  try {
+    helperResp = await fetch(`${data.calls_base}/api/call/session`, {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ token: data.token })
+    });
+  } catch (error) {
+    Glow.calls.debug("helper fetch failed", error);
+    throw new Error("Could not reach the call helper service.");
+  }
 
   let helperData = {};
   try {
     helperData = await helperResp.json();
-  } catch (_) {}
+  } catch (error) {
+    Glow.calls.debug("helper json parse failed", error);
+  }
 
   if (!helperResp.ok || !helperData.ok) {
+    Glow.calls.debug("helper returned error", helperResp.status, helperData);
     throw new Error(helperData.error || `Call helper failed (${helperResp.status})`);
   }
 
@@ -323,6 +427,7 @@ Glow.calls.fetchGroupCallSession = async scope => {
     can_invite: false
   };
   helperData.scope = data.scope || null;
+  Glow.calls.debug("helper session ready", helperData);
   return helperData;
 };
 
@@ -491,22 +596,37 @@ Glow.calls.connectWebSocket = async () => {
     throw new Error("Missing helper WebSocket URL.");
   }
 
+  const wsUrl = Glow.calls.replaceHttpWs(state.session.ws_url);
+  Glow.calls.debug("connecting websocket", wsUrl);
+
   return new Promise((resolve, reject) => {
-    const ws = new WebSocket(Glow.calls.replaceHttpWs(state.session.ws_url));
+    const ws = new WebSocket(wsUrl);
     state.ws = ws;
+    let settled = false;
 
     ws.onopen = () => {
+      Glow.calls.debug("websocket open");
       state.reconnecting = false;
       state.joining = false;
       Glow.calls.setStatusText("Connected");
+      settled = true;
       resolve();
     };
 
     ws.onerror = error => {
-      reject(error);
+      Glow.calls.debug("websocket error", error);
+      if (!settled) {
+        settled = true;
+        reject(new Error("Could not connect to the call signaling service."));
+      }
     };
 
-    ws.onclose = () => {
+    ws.onclose = event => {
+      Glow.calls.debug("websocket close", event.code, event.reason);
+      if (!settled) {
+        settled = true;
+        reject(new Error("Call signaling connection closed before it was ready."));
+      }
       if (state.activeCall) {
         Glow.calls.scheduleReconnect();
       }
@@ -517,9 +637,12 @@ Glow.calls.connectWebSocket = async () => {
       try {
         signal = JSON.parse(event.data);
       } catch (_) {
+        Glow.calls.debug("ignoring non-json ws message");
         return;
       }
 
+      Glow.calls.debug("ws message", signal);
+
       if (signal.type === "joined") {
         state.selfPeerId = signal.participantId;
         Glow.calls.setStatusText("Call connected");
@@ -529,9 +652,11 @@ Glow.calls.connectWebSocket = async () => {
       }
 
       if (signal.type === "participant-joined") {
+        state.ignoreOffer.set(signal.participantId, false);
         Glow.calls.upsertPeer({
           participantId: signal.participantId,
-          roomId: signal.roomId
+          roomId: signal.roomId,
+          username: signal.username || signal.participantId
         });
         Glow.renderCallUi();
         Glow.calls.renderParticipants();
@@ -539,7 +664,9 @@ Glow.calls.connectWebSocket = async () => {
         if (signal.participantId && signal.participantId !== state.selfPeerId) {
           try {
             await Glow.calls.makeOfferTo(signal.participantId);
-          } catch (_) {}
+          } catch (error) {
+            Glow.calls.debug("offer on participant-joined failed", error);
+          }
         }
         return;
       }
@@ -561,7 +688,9 @@ Glow.calls.connectWebSocket = async () => {
         if (signal.participantId) {
           try {
             await Glow.calls.makeOfferTo(signal.participantId);
-          } catch (_) {}
+          } catch (error) {
+            Glow.calls.debug("reoffer-needed failed", error);
+          }
         }
         return;
       }
@@ -578,37 +707,114 @@ Glow.calls.connectWebSocket = async () => {
         Glow.calls.renderParticipants();
 
         const pc = await Glow.calls.ensurePeerConnection(from);
-        await pc.setRemoteDescription({ type: "offer", sdp: signal.sdp });
-        const answer = await pc.createAnswer();
-        await pc.setLocalDescription(answer);
+        const polite = Glow.calls.isPolitePeer(from);
+        const makingOffer = Boolean(state.makingOffer.get(from));
+        const isSettingRemoteAnswerPending = Boolean(state.isSettingRemoteAnswerPending.get(from));
+        const offerCollision =
+          makingOffer ||
+          (pc.signalingState !== "stable" && !isSettingRemoteAnswerPending);
 
-        Glow.calls.sendSignal({
-          type: "answer",
-          to: from,
-          sdp: answer.sdp
+        state.ignoreOffer.set(from, !polite && offerCollision);
+
+        Glow.calls.debug("received offer", {
+          from,
+          polite,
+          makingOffer,
+          signalingState: pc.signalingState,
+          isSettingRemoteAnswerPending,
+          offerCollision,
+          ignoreOffer: state.ignoreOffer.get(from)
         });
+
+        if (state.ignoreOffer.get(from)) {
+          Glow.calls.debug("ignoring incoming offer due to collision", { from });
+          return;
+        }
+
+        try {
+          if (offerCollision) {
+            await Promise.all([
+              pc.setLocalDescription({ type: "rollback" }),
+              pc.setRemoteDescription({ type: "offer", sdp: signal.sdp })
+            ]);
+          } else {
+            await pc.setRemoteDescription({ type: "offer", sdp: signal.sdp });
+          }
+
+          const answer = await pc.createAnswer();
+          await pc.setLocalDescription(answer);
+
+          Glow.calls.sendSignal({
+            type: "answer",
+            to: from,
+            sdp: pc.localDescription?.sdp || answer.sdp
+          });
+        } catch (error) {
+          Glow.calls.debug("offer handling failed", {
+            from,
+            signalingState: pc.signalingState,
+            error: error?.message || String(error)
+          });
+        }
         return;
       }
 
       if (signal.type === "answer") {
         const from = signal.from;
         if (!from) return;
+
         const pc = await Glow.calls.ensurePeerConnection(from);
-        await pc.setRemoteDescription({ type: "answer", sdp: signal.sdp });
+
+        Glow.calls.debug("received answer", {
+          from,
+          signalingState: pc.signalingState,
+          connectionState: pc.connectionState
+        });
+
+        if (pc.signalingState !== "have-local-offer") {
+          Glow.calls.debug("ignoring unexpected answer", {
+            from,
+            signalingState: pc.signalingState
+          });
+          return;
+        }
+
+        try {
+          state.isSettingRemoteAnswerPending.set(from, true);
+          await pc.setRemoteDescription({ type: "answer", sdp: signal.sdp });
+        } catch (error) {
+          Glow.calls.debug("setRemoteDescription(answer) failed", {
+            from,
+            signalingState: pc.signalingState,
+            error: error?.message || String(error)
+          });
+        } finally {
+          state.isSettingRemoteAnswerPending.set(from, false);
+        }
         return;
       }
 
       if (signal.type === "ice" || signal.type === "ice-candidate") {
         const from = signal.from;
         if (!from) return;
+
         const pc = await Glow.calls.ensurePeerConnection(from);
+
         try {
           await pc.addIceCandidate({
             candidate: signal.candidate,
             sdpMid: signal.sdpMid,
             sdpMLineIndex: signal.sdpMLineIndex
           });
-        } catch (_) {}
+        } catch (error) {
+          const ignored = Boolean(state.ignoreOffer.get(from));
+          if (!ignored) {
+            Glow.calls.debug("addIceCandidate failed", {
+              from,
+              error: error?.message || String(error)
+            });
+          }
+        }
       }
     };
   });
@@ -635,6 +841,8 @@ Glow.calls.resetTransportOnly = () => {
       pc.onicecandidate = null;
       pc.ontrack = null;
       pc.onconnectionstatechange = null;
+      pc.onsignalingstatechange = null;
+      pc.oniceconnectionstatechange = null;
       pc.close();
     } catch (_) {}
   }
@@ -651,6 +859,11 @@ Glow.calls.resetTransportOnly = () => {
   state.selfPeerId = null;
   state.reconnectTimer = null;
   state.reconnecting = false;
+  state.makingOffer = new Map();
+  state.ignoreOffer = new Map();
+  state.isSettingRemoteAnswerPending = new Map();
+
+  Glow.calls.debug("resetTransportOnly complete");
 };
 
 Glow.calls.resetAll = () => {
@@ -684,6 +897,8 @@ Glow.calls.resetAll = () => {
     can_end: false,
     can_invite: false
   };
+
+  Glow.calls.debug("resetAll complete");
 };
 
 Glow.endLocalCallUi = async () => {
@@ -719,6 +934,7 @@ Glow.calls.scheduleReconnect = () => {
       const scope = state.activeCall.scope || state.scope || Glow.calls.getCurrentScope();
       if (!scope) return;
 
+      Glow.calls.debug("reconnect attempt", scope);
       Glow.calls.resetTransportOnly();
       Glow.calls.setStatusText("Reconnecting…");
       state.session = await Glow.calls.fetchGroupCallSession(scope);
@@ -733,7 +949,8 @@ Glow.calls.scheduleReconnect = () => {
       Glow.showToast("Call reconnected.");
       Glow.renderCallUi();
       Glow.calls.refreshBackendParticipants();
-    } catch (_) {
+    } catch (error) {
+      Glow.calls.debug("reconnect failed", error);
       Glow.calls.scheduleReconnect();
     }
   }, 2000);
@@ -751,7 +968,10 @@ Glow.calls.refreshBackendParticipants = async () => {
     Glow.state.calls.scope = data.scope || Glow.state.calls.scope;
     Glow.calls.renderParticipants();
     Glow.renderCallUi();
-  } catch (_) {}
+    Glow.calls.debug("backend participants refreshed", data);
+  } catch (error) {
+    Glow.calls.debug("refreshBackendParticipants failed", error);
+  }
 };
 
 Glow.calls.startParticipantSync = () => {
@@ -780,7 +1000,10 @@ Glow.calls.startHeartbeat = () => {
 
     try {
       await Glow.apiHeartbeatGroupCall(sessionId);
-    } catch (_) {}
+      Glow.calls.debug("heartbeat ok", sessionId);
+    } catch (error) {
+      Glow.calls.debug("heartbeat failed", error);
+    }
 
     Glow.calls.startHeartbeat();
   };
@@ -866,8 +1089,9 @@ Glow.startCall = async () => {
     return;
   }
 
-  if (!navigator.mediaDevices?.getUserMedia || !window.RTCPeerConnection) {
-    Glow.showToast("Voice calls are not supported in this browser.", "error");
+  const supportError = Glow.calls.browserSupportError();
+  if (supportError) {
+    Glow.showToast(supportError, "error");
     return;
   }
 
@@ -891,6 +1115,9 @@ Glow.startCall = async () => {
     Glow.state.calls.remoteStreams = new Map();
     Glow.state.calls.participantAudioEls = new Map();
     Glow.state.calls.backendParticipants = session.participants || [];
+    Glow.state.calls.makingOffer = new Map();
+    Glow.state.calls.ignoreOffer = new Map();
+    Glow.state.calls.isSettingRemoteAnswerPending = new Map();
 
     Glow.openCallPanel();
     Glow.calls.setStatusText("Connecting microphone…");
@@ -904,6 +1131,7 @@ Glow.startCall = async () => {
     Glow.renderCallUi();
     Glow.showToast("Group call ready.");
   } catch (error) {
+    Glow.calls.debug("startCall failed", error);
     Glow.state.calls.joining = false;
     Glow.showToast(error.message || "Could not start group call.", "error");
     await Glow.endLocalCallUi();
@@ -917,6 +1145,7 @@ Glow.toggleMuteCall = () => {
   for (const track of stream.getAudioTracks()) {
     track.enabled = !Glow.state.calls.muted;
   }
+  Glow.calls.debug("mute toggled", Glow.state.calls.muted);
   Glow.renderCallUi();
 };
 
@@ -936,7 +1165,9 @@ Glow.leaveCall = async () => {
     if (activeCall.groupSession?.id) {
       await Glow.apiLeaveGroupCall(activeCall.groupSession.id);
     }
-  } catch (_) {}
+  } catch (error) {
+    Glow.calls.debug("leave call api failed", error);
+  }
 
   Glow.showToast("Left call.");
   Glow.state.calls.leaving = false;
@@ -964,6 +1195,7 @@ Glow.endCallForEveryone = async () => {
     Glow.showToast("Call ended.");
     await Glow.endLocalCallUi();
   } catch (error) {
+    Glow.calls.debug("endCallForEveryone failed", error);
     Glow.showToast(error.message || "Could not end call.", "error");
   }
 };
@@ -1011,6 +1243,7 @@ Glow.openAddToCallDialog = async () => {
     const result = await Glow.calls.requestInvite(values.username.trim().toLowerCase());
     Glow.showToast(`Invite sent to ${result.invite.invitee_username}.`);
   } catch (error) {
+    Glow.calls.debug("requestInvite failed", error);
     Glow.showToast(error.message || "Could not send invite.", "error");
   }
 };
@@ -1027,18 +1260,27 @@ Glow.calls.fetchInvites = async () => {
 Glow.calls.acceptInvite = async inviteId => {
   const data = await Glow.apiAcceptGroupCallInvite(inviteId);
 
-  const helperResp = await fetch(`${data.calls_base}/api/call/session`, {
-    method: "POST",
-    headers: { "Content-Type": "application/json" },
-    body: JSON.stringify({ token: data.token })
-  });
+  let helperResp;
+  try {
+    helperResp = await fetch(`${data.calls_base}/api/call/session`, {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ token: data.token })
+    });
+  } catch (error) {
+    Glow.calls.debug("acceptInvite helper fetch failed", error);
+    throw new Error("Could not reach the call helper service.");
+  }
 
   let helperData = {};
   try {
     helperData = await helperResp.json();
-  } catch (_) {}
+  } catch (error) {
+    Glow.calls.debug("acceptInvite helper json parse failed", error);
+  }
 
   if (!helperResp.ok || !helperData.ok) {
+    Glow.calls.debug("acceptInvite helper returned error", helperResp.status, helperData);
     throw new Error(helperData.error || `Call helper failed (${helperResp.status})`);
   }
 
@@ -1074,6 +1316,11 @@ Glow.calls.openIncomingInviteDialog = async invite => {
   }
 
   try {
+    const supportError = Glow.calls.browserSupportError();
+    if (supportError) {
+      throw new Error(supportError);
+    }
+
     Glow.state.calls.joining = true;
     Glow.calls.setStatusText("Joining call…");
 
@@ -1094,6 +1341,9 @@ Glow.calls.openIncomingInviteDialog = async invite => {
     Glow.state.calls.remoteStreams = new Map();
     Glow.state.calls.participantAudioEls = new Map();
     Glow.state.calls.backendParticipants = session.participants || [];
+    Glow.state.calls.makingOffer = new Map();
+    Glow.state.calls.ignoreOffer = new Map();
+    Glow.state.calls.isSettingRemoteAnswerPending = new Map();
 
     Glow.openCallPanel();
     Glow.calls.setStatusText("Connecting microphone…");
@@ -1109,6 +1359,7 @@ Glow.calls.openIncomingInviteDialog = async invite => {
     Glow.renderCallUi();
     Glow.showToast("Joined group call.");
   } catch (error) {
+    Glow.calls.debug("openIncomingInviteDialog failed", error);
     Glow.state.calls.joining = false;
     Glow.showToast(error.message || "Could not join group call.", "error");
   }
@@ -1124,7 +1375,9 @@ Glow.calls.pollInvites = async () => {
 
     const invite = invites[0];
     await Glow.calls.openIncomingInviteDialog(invite);
-  } catch (_) {}
+  } catch (error) {
+    Glow.calls.debug("pollInvites failed", error);
+  }
 };
 
 Glow.calls.scheduleInvitePolling = () => {