catalyst-hook 15.9-6 catalyst-libgl 15.9-2 catalyst-utils 15.9-2 mlt 0.9.8-3 qt5-base 5.5.1-3 kdenlive git describe --tags --always v15.11.80-53-g0918054 Possibly hard to reproduce. Steps to reproduce 1. Start kdenlive 2. Import an mp4 video 3. Drag video to timeline 4. Switch to overwrite mode 5. Cut video into 3 pieces 6. Move clips around quickly, in combination with using ctrl+z (undo) quickly Expected results: 1. Actions happen instantly, delayed or ability to take action is taken away while the UI updates. Actual result: 1. I get error messages that undo can't be done and the clips are changed in a manner that was not present in the history or Kdenlive freezes or Kdenlive crashes. Video: https://youtu.be/YcLQV54JqZs
Update: this issue persists with kdenlive-git 16.07.70.r7210.01af6cd-1 mlt 6.0.0-1 ffmpeg 1:3.0.1-1 xf86-video-ati 1:7.6.1-1
Git commit 76f9aa85231dd7a9f6be5d242ed465e7acd1010e by Jean-Baptiste Mardelle. Committed on 09/04/2016 at 16:03. Pushed by mardelle into branch 'Applications/16.04'. Fix timeline corruption on undo in overwrite mode M +2 -0 src/timeline/customtrackview.cpp http://commits.kde.org/kdenlive/76f9aa85231dd7a9f6be5d242ed465e7acd1010e