diff --git a/submodules/TgVoipWebrtc/Sources/OngoingCallThreadLocalContext.mm b/submodules/TgVoipWebrtc/Sources/OngoingCallThreadLocalContext.mm
index 7ff25040d7..c3333d6282 100644
--- a/submodules/TgVoipWebrtc/Sources/OngoingCallThreadLocalContext.mm
+++ b/submodules/TgVoipWebrtc/Sources/OngoingCallThreadLocalContext.mm
@@ -474,7 +474,7 @@ public:
         _mutex.Lock();
         if (!_audioTransports.empty()) {
             for (size_t i = 0; i < _audioTransports.size(); i++) {
-                _audioTransports[_audioTransports.size() - 1]->RecordedDataIsAvailable(
+                _audioTransports[i]->RecordedDataIsAvailable(
                     audioSamples,
                     nSamples,
                     nBytesPerSample,
@@ -673,6 +673,11 @@ public:
     }
     
     virtual ~WrappedChildAudioDeviceModule() {
+        if (_audioCallback) {
+            auto previousAudioCallback = _audioCallback;
+            _audioCallback = nullptr;
+            ((WrappedAudioDeviceModuleIOS *)WrappedInstance().get())->UpdateAudioCallback(previousAudioCallback, nullptr);
+        }
     }
     
     virtual int32_t RegisterAudioCallback(webrtc::AudioTransport *audioCallback) override {
diff --git a/submodules/TgVoipWebrtc/tgcalls b/submodules/TgVoipWebrtc/tgcalls
index 6f4e6f1b4c..bc8334224d 160000
--- a/submodules/TgVoipWebrtc/tgcalls
+++ b/submodules/TgVoipWebrtc/tgcalls
@@ -1 +1 @@
-Subproject commit 6f4e6f1b4cdfed02a30a2883a8ecb7586732ddfc
+Subproject commit bc8334224dbefb4591d669f7569d16f69134c5b6
diff --git a/versions.json b/versions.json
index 9146b480e6..8ea17f978c 100644
--- a/versions.json
+++ b/versions.json
@@ -1,5 +1,5 @@
 {
-    "app": "11.8.2",
+    "app": "11.8.3",
     "xcode": "16.2",
     "bazel": "7.3.1:981f82a470bad1349322b6f51c9c6ffa0aa291dab1014fac411543c12e661dff",
     "macos": "15"