Created attachment 144635 [details] Simple click track for repro My audio thumbnails get corrupted every time I reload my project. It's particularly visible on my current project where I'm using a click track to help with AV sync. STEPS TO REPRODUCE 1. Generate a click track in Audacity (I'll attach a sample) 2. New project, add the audio clip 3. Save project 4. File > Revert, or restart kdenlinve and open the project OBSERVED RESULT Double impulses on the waveform displayed in the clip monitor, and on timeline audio thumbnails. The audio is actually synced to the second impulse; the first one is a lie. ---^^---^^---^^---^^--- EXPECTED RESULT Single impulses on clip monitor / timeline thumbnails. ----^----^----^----^--- SOFTWARE/OS VERSIONS Debian 10.11 "buster" kdenlive-21.08.3-x86_64.appimage kdenlive-22.03.70-8b0a5ea-x86_64.appimage ADDITIONAL INFORMATION Workaround: delete the audio thumbnail cache and restart. Thumbnails are correct the first time the project is loaded. After the next load they are wrong again. Resetting to the default configuration does not solve the problem. The same problem occurs with or without ffmpeg thumbnails enabled.