https://bugs.kde.org/show_bug.cgi?id=475376
Bug ID: 475376
Summary: Keyframes sometimes get lost with Transform tool
Classification: Applications
Product: kdenlive
Version: 23.08.0
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: Effects & Transitions
Assignee: j...@kdenlive.org
Reporter: r...@alum.mit.edu
Target Milestone: ---
SUMMARY
***
When editing a clip using the Transform tool, mostly when moving (translating)
a keyframe, sometimes the scaling/translation components of the keyframe get
lost and simultaneously all red keyframe dots on the preview vanish. This most
commonly happens when using the direct entry boxes in the tool (e. g.
horizontal and vertical position). I use the mousewheel to move the frame;
while spinning the wheel, I observe all of the keypoints vanish. In case it
matters, I always lock aspect ratio.
Undo does not restore them. If I save the project, I observe that there are no
keyframes in the translation/scaling list that were inserted prior to them
getting lost, but rotation components are there. If I reopen the project, the
keyframes show up in the timeline, but the positions are gone. Needless to
say, this results in the loss of a lot of work.
If I save the project after every keyframe edit, this does not happen. It
otherwise does not happen predictably and there's no specific reproducer case.
Perhaps the fact that saving the project constantly suppresses this behavior
gives a clue.
Another effect that may or may not be related is that a keyframe added after
this will be set to Discrete mode even though I have not to the best of my
knowledge requested that.
This happens at least for the last several major versions.
***
STEPS TO REPRODUCE
1. Open kdenlive (on a new project)
2. Add a clip
3. Open the Transform effect, and start adding keyframes
OBSERVED RESULT
On occasion, all keyframes vanish
EXPECTED RESULT
Keyframes do not vanis.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: OpenSUSE Leap 15.5
(available in About System)
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.11.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
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