https://bugs.kde.org/show_bug.cgi?id=369505
Bug ID: 369505
Summary: Audio and video clips randomly moves in the timeline
after mysterius duplication of clips.
Product: kdenlive
Version: 16.08.0
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Severity: critical
Priority: NOR
Component: User Interface
Assignee: j...@kdenlive.org
Reporter: eman...@interfilm.no
While editing in the timeline of Kdenlive with ungrouped and splitt audio and
video channels (this is needed for complex edits), some clips will not move
while being manipulated with the selection tool. The clips can not be moved
before either cuted by the razor tool, then an undo comand and then use the
select tool, or a save and restart of Kdenlive.
On restart, sometimes kdenlive will create a duplicate clip on the timeline,
and sometimes the duplicates will move large cunks of clips on the timeline on
the track the duplication have occured. This will lead other clips, behind the
duplicate, to be out of sync. If one tries to manually sync the unsynced clips,
often, the same problem ocurres again. I.e. the clips are not moveable with the
selection tool. After a save and restart of Kdenlive, large amount of clips
will be out of place on the timeline.
On other ocations, after a manual resync, the clips will seem to be in the
correct place. But they will not appare synced on playback in the project
monitor. On save and restart, the clips will have moved alot, duplicated
themselvs in varius places, creating complete mayham on the timeline.
This problem will apeare frequently, but without any forshadowing. It might
occure two times or more a day, with a working day of several houres. It can
occure at the start of a working day, with plenty of ram avaliable or after
houres of work. The problem also apears on small and large projects.
Reproducible: Sometimes
Steps to Reproduce:
1. Splitt several audio and video on a clip on the timeline.
2. Ungroup the video and audio clips,
3. Rearange them into a sceen
4. At some point a clip will be unwilling to move.
5. Save and restart kdenlive.
6. The clip will have moved to the place designated before the restart. However
there is a duplicate on the original place. The dublicate might have moved
other clips that occupy space behind it on the timeline.
7. Delete the duplicated clip, and move unsynced clips into place. This might
make one undo and move the clips alot inorder to sync the video and audio.
8. Sometimes after syncing the clips, audio and video will not be synced in
playback on the project monitor.
9. Save and restart kdenlive.
Actual Results:
On reopening kdenlive clips in the timeline are duplicated, unsynced and a
complete mess.
Expected Results:
In order for kdenlive to be a semi- or full professional video editor,
integrity of the timeline is an absolute must. No unwarrented duplications
should occure and clips should be on the place designated for them.
Kdenlive config: Mostly stock configuration. GPU acceleration not enabled.
Using 4 cores for playback, multithreading not enabled. In other words, noen of
the experimental features are enabled. Preview playback is used for the
timeline.
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