inital

lib/screens/viewer_screen.dart

@@ -92,7 +92,10 @@ class _ViewerScreenState extends State<ViewerScreen> {
       return;
     }
 
-    _sig.send({'type': 'join', 'roomId': roomId});
+    // build the peer connection BEFORE telling the server we've joined,
+    // otherwise the host's offer can race in before _pc exists and the
+    // whole answer step gets silently dropped
+    await _initPeerConnection(roomId);
 
     _sigSub = _sig.messages.listen(
       (msg) => _onSignal(msg, roomId),
@@ -100,6 +103,8 @@ class _ViewerScreenState extends State<ViewerScreen> {
         setState(() => _status = 'Signal error: $e');
       },
     );
+
+    _sig.send({'type': 'join', 'roomId': roomId});
   }
 
   Future<void> _onSignal(Map<String, dynamic> msg, String roomId) async {
@@ -108,7 +113,6 @@ class _ViewerScreenState extends State<ViewerScreen> {
     switch (type) {
       case 'joined':
         setState(() => _status = 'Waiting for host offer...');
-        await _initPeerConnection(roomId);
         break;
 
       case 'signal':

macos/Runner/AppDelegate.swift

@@ -34,7 +34,7 @@ class AppDelegate: FlutterAppDelegate {
           let ctrl = window.contentViewController as? FlutterViewController else { return }
 
     let messenger = ctrl.engine.binaryMessenger
-    textureRegistry = ctrl.engine.textureRegistry
+    textureRegistry = ctrl.engine.registrar(forPlugin: "PulsarTextures").textures
 
     inputChannel = FlutterMethodChannel(name: "com.pulsar/input", binaryMessenger: messenger)
     inputChannel?.setMethodCallHandler { [weak self] call, result in

pubspec.lock

@@ -239,10 +239,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
+      sha256: "1741988757a65eb6b36abe716829688cf01910bbf91c34354ff7ec1c3de2b349"
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.0"
+    version: "1.18.0"
   native_toolchain_c:
     dependency: transitive
     description: