fix: only set playingMessageId on first auto-played chunk to prevent race

Matthias Nott

2026-03-24 a8aa30beefb15b604a37867c45dc815b9da5b53a

fix: only set playingMessageId on first auto-played chunk to prevent race

 lib/screens/chat_screen.dart
..
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@@ -519,7 +519,12 @@
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     _scrollToBottom();
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     if (audioData != null && !AudioService.isBackgrounded && !_isCatchingUp && !_isRecording) {
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-      setState(() => _playingMessageId = storedMessage.id);
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+      // Only set playing ID if nothing is currently playing (first chunk).
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+      // Subsequent chunks just queue audio without touching the play indicator,
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+      // preventing the completion callback race from clearing it prematurely.
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+      if (_playingMessageId == null) {
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+        setState(() => _playingMessageId = storedMessage.id);
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+      }
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       AudioService.queueBase64(audioData);
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     }
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   }