Intermittent Blank Camera Preview (Scanner Still Active) - "A resource failed to call release" Warnings

[ptadev55]

Wondering if anyone else has experienced this and how they may have gotten around it:

I'm encountering an intermittent issue where the Mobile Scanner widget's camera preview sometimes fails to display, showing only a blank or static background (e.g., a green bar on a white background), even though the underlying scanner remains active and successfully detects QR codes. This behavior is accompanied by warnings in the system logs that look like this:

W/System (XXXX): A resource failed to call release.
I/BpBinder(XXXX): onLastStrongRef automatically unlinking death recipients:
W/System (XXXX): A resource failed to call release.
I/BpBinder(XXXX): onLastStrongRef automatically unlinking death recipients:

The issue appears to be highly timing-dependent: the shorter the duration spent on other screens (e.g., the app's home screen is where i currently navigate from/to the scanner screen) before returning to the scanner screen, the more likely the camera preview is to be blank. Conversely, waiting for a longer period (e.g., 5-10 seconds) before returning makes the camera preview consistently appear correctly. For now, I have placed a 2 second delay (via a Future.delayed(const Duration(milliseconds: 2000))) before calling _scannerController.start() and it seems to consistency show the camera preview, further suggesting a timing-related issue.

Wondering if some sort of race condition or maybe the delayed resource release is an issue within the plugin's native camera management?

Additional Context:
The application explicitly disposes and re-creates a new MobileScannerController instance whenever the ScreenOneScanning state is entered (e.g., after a successful scan and reset, or on AppLifecycleState.resumed).

Project is Flutter 3.27.3, Dart 3.6.1, mobile Scanner 6.0.10
Device is Samsung S10e, Android 12.