p3wbqcluq5 I can confirm the exact same problem.
After updating my CMF Headphone Pro to firmware version 1.0.1.49, I have encountered a severe, persistent audio-video synchronization issue (clock drift) during video playback on Android (Samsung One UI).
While the lowered notification chime volume is a welcome improvement, video and audio streams continuously drift out of sync over time, particularly within the YouTube app. Playback starts perfectly synchronized, but after several minutes of continuous streaming, the audio progressively lags behind the video.
The issue persists across both AAC and SBC codecs, and enabling Low Lag Mode does not resolve it. Standard troubleshooting—including full factory resets and re-pairing—does not help. Disconnecting only resets the buffer temporarily before the drift returns.
Looking at the Nothing Community forums, multiple other users are reporting the exact same desynchronization bug after installing v1.0.1.49 across various Android devices. This clearly indicates a regression in the headphone’s internal DSP/A2DP timing stack. Please investigate and release a hotfix firmware update.