diff --git a/src/stream/stream_media_buffer.c b/src/stream/stream_media_buffer.c
index 17bf364d..d72c896c 100644
--- a/src/stream/stream_media_buffer.c
+++ b/src/stream/stream_media_buffer.c
@@ -34,6 +34,8 @@ struct stream_media_cursor {
     int initialized;
     unsigned tracks;
     int64_t start_us;
+    int audio_started;
+    int64_t audio_blocked_pts;
     uint8_t *scratch[2], *frame;
     size_t scratch_capacity, frame_capacity;
     uint64_t scratch_seq[2];
@@ -258,6 +260,7 @@ void stream_media_cursor_destroy(struct stream_media_cursor *c) {
 void stream_media_cursor_reset(struct stream_media_cursor *c) {
     if (!c) { DEBUG_ERROR(DEBUG_CATEGORY_STREAM, "media cursor reset: null cursor"); return; }
     c->initialized = 0; c->video_revision = 0; c->pending_used = 0;
+    c->audio_started = 0; c->audio_blocked_pts = -1;
     c->pending = (struct stream_media_video){0}; c->pending_format = (struct stream_media_format){0};
     c->scratch_valid[0] = c->scratch_valid[1] = 0;
     c->video = (struct cursor_track){0}; c->audio = (struct cursor_track){0};
@@ -431,10 +434,22 @@ int stream_media_cursor_read(struct stream_media_cursor *c, int64_t position, in
         result = cursor_block(c, c->audio.seq, &audio);
         if (result != STREAM_OK) return result;
         struct stream_media_audio a = audio.audio[c->audio.entry++];
+        if (!c->audio_started) {
+            DEBUG_INFO(DEBUG_CATEGORY_STREAM, "media cursor first audio source=%llx seq=%llu pts=%llu start=%lld lead_us=%lld",
+                (unsigned long long)c->store->descriptor.source_node_id, (unsigned long long)c->audio.seq,
+                (unsigned long long)a.pts_us, (long long)c->start_us, (long long)((int64_t)a.pts_us - c->start_us));
+            c->audio_started = 1;
+        }
         memcpy(c->opus, a.data, a.length); a.data = c->opus;
         *packet = (struct stream_media_packet){.kind = STREAM_MEDIA_READ_AUDIO, .format = audio.format, .audio = a};
         return STREAM_OK;
     }
     if (video_allowed) return cursor_video(c, packet);
+    if (ar == STREAM_OK && audio_ahead >= 0 && audio_pts > audio_limit && c->audio_blocked_pts != audio_pts) {
+        c->audio_blocked_pts = audio_pts;
+        DEBUG_DEBUG(DEBUG_CATEGORY_STREAM, "media cursor audio waits source=%llx seq=%llu pts=%lld position=%lld limit=%lld first=%d video_requested=%d",
+            (unsigned long long)c->store->descriptor.source_node_id, (unsigned long long)c->audio.seq,
+            (long long)audio_pts, (long long)position, (long long)audio_limit, !c->audio_started, want_video);
+    }
     return ar == STREAM_MORE || vr == STREAM_MORE ? STREAM_MORE : STREAM_WAIT;
 }
diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/StreamPlayerEngine.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/StreamPlayerEngine.kt
index 6f41fced..067d0279 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/StreamPlayerEngine.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/StreamPlayerEngine.kt
@@ -52,6 +52,8 @@ class StreamPlayerEngine(private val group: Long, private val source: Long, priv
         var position = -1L
         var ready = -1L
         var needsAudio = true
+        var audioInputs = 0L
+        var lastAudioPts = -1L
         var generation = 0L
         var playbackStarted = false
         var eosQueued = false
@@ -178,6 +180,7 @@ class StreamPlayerEngine(private val group: Long, private val source: Long, priv
                             }
                         }
                         2 -> if (audioEnabled && playback != 0L) {
+                            audioInputs++; lastAudioPts = pts
                             val result = NativeLib.streamPlaybackFeed(playback, pts, ByteArray(size).also { b.get(it) })
                             if (result == -2) resetTimeline(true) else check(result >= 0) { "Opus feed failed=$result" }
                         }
@@ -235,7 +238,8 @@ class StreamPlayerEngine(private val group: Long, private val source: Long, priv
                     LogManager.addLog("DEBUG", "stream", "viewer id=$id revision=$videoRevision inputs=${video.inputCount} " +
                         "decoded=${video.outputCount} shown=${video.shown} discarded=${video.discarded} input=${video.input != null} " +
                         "output=${video.output?.pts} inflight=${video.inflight} decoderLeadUs=${video.decoderLeadUs} " +
-                        "clock=$position reserve=${clockState?.get(1)} minimum=${clockState?.get(2)} " +
+                        "clock=$position ready=$ready audio=$audioEnabled audioInputs=$audioInputs audioPTS=$lastAudioPts needsAudio=$needsAudio " +
+                        "reserve=${clockState?.get(1)} minimum=${clockState?.get(2)} " +
                         "tempo=${clockState?.get(3)} ${audio.description} waitingKey=$waitingKey")
                 }
                 Thread.sleep(5)
diff --git a/tools/chatgui/CMakeLists.txt b/tools/chatgui/CMakeLists.txt
index d66cecd7..50d0d235 100644
--- a/tools/chatgui/CMakeLists.txt
+++ b/tools/chatgui/CMakeLists.txt
@@ -657,6 +657,13 @@ target_include_directories(test_voice_file PRIVATE ${UTUN_INCLUDE_DIRS})
 target_link_libraries(test_voice_file PRIVATE ${QT_LIBS} utun_voice utun pthread ${CMAKE_DL_LIBS})
 add_test(NAME test_voice_file COMMAND test_voice_file)
 
+if(WIN32)
+    # AudioDevice закрывает неисправный WASAPI в worker с собственным COM apartment.
+    foreach(audio_target vibechat test_file_drop test_invite_links test_video_engine test_stream_view test_stream_publish test_voice_file)
+        target_link_libraries(${audio_target} PRIVATE ole32)
+    endforeach()
+endif()
+
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
     add_executable(test_audio_recovery tests/test_audio_recovery.cpp src/audio_device.cpp src/sound_manager.cpp src/voice_audio_io.cpp
         src/audiorecorder.cpp src/call_audio_engine.cpp src/radio_audio_engine.cpp