SUMMARY The UI freezes when clicking a second clip. It doesn't matter what the clip is. STEPS TO REPRODUCE 1. Open kdenlive 2. Import some clips or open an existing project 3. Click a clip 4. Click another clip OBSERVED RESULT UI freezes EXPECTED RESULT Nothing strange happen, only the second clip is selected SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: N/A (available in About System) KDE Plasma Version: N/A KDE Frameworks Version: 19.12 Qt Version: 5.14.0 ADDITIONAL INFORMATION Running kdenlive from terminal, and the log seems to indicate there are race conditions: QPoint(0,1061) MUTEX LOCK!!!!!!!!!!!! setmodel MUTEX UNLOCK!!!!!!!!!!!! setmodel MUTEX LOCK!!!!!!!!!!!! loadEffects: /// GOT AUDIO TRACKS: (7) QPoint(0,789) Every QPoint(0,xxx) appears after a click with other lines following it.
For clarity: the terminal outputs provided are the final outputs. Nothing more shows up, and the kdenlive UI freezes. However, Ctrl-C on terminal works as expected (so does kill command).
After being pointed out from archlinux bbs, deleting ~/.config/kdenliverc makes this problem disappear. https://bbs.archlinux.org/viewtopic.php?id=246411 So could this be a problem of changing config format / content?
Deleting kdenliverc is not a problem. Sometimes the file gets "corrupt". It seems it works. We close this bug. If it still appears in the latest version, please feel free to re-open it and update the affected version number.