https://bugs.kde.org/show_bug.cgi?id=503369
Bug ID: 503369
Summary: Razor tool causes audio tracks to clone and un-clone
Classification: Applications
Product: kdenlive
Version: unspecified
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Timeline & Editing
Assignee: j...@kdenlive.org
Reporter: ultravioletcom...@proton.me
Target Milestone: ---
Created attachment 180671
--> https://bugs.kde.org/attachment.cgi?id=180671&action=edit
Anonymized project file
SUMMARY
When using the Razor tool to cut up a video with multiple attached audio
tracks, it causes Audio Track 2 to overwrite Audio Track 1, then goes back to
normal when the next cut is made, then repeats.
STEPS TO REPRODUCE
1. Add a video file in the timeline with more than one distinct audio track
included.
2. Use Razor tool to split the footage into a smaller clip.
3. Use the Razor tool again to make another cut.
OBSERVED RESULT
In my current project, the second audio track (which is audio from a video
game) will replace the first audio track (audio from my microphone), causing
louder doubled audio until I make another cut, at which time it returns to
normal until I make yet another cut.
EXPECTED RESULT
Making a cut in the timeline should preserve both audio tracks as they are,
where they are.
SOFTWARE/OS VERSIONS
Version: 25.04.0 (N.B: also produced this bug on the previous version,
24-something)
Operating System: Fedora 41 Workstation (Xcb)
KDE Plasma Version: N/A
KDE Frameworks Version: 6.13.0
Qt Version: 6.8.2
ADDITIONAL INFORMATION
I am working with a recording originally made with OBS Studio 31 (using the
Hybrid MP4 format available in that program), which was then cut down with
LosslessCut to remove dead air segments from when I went AFK, so it is possible
that my source footage causes some problem in the software (Worth noting:
Kdenlive asked me to transcode it upon import, but then, Kdenlive also asks me
to transcode seemingly EVERY video file I give it for reasons of "variable
frame rate," and I have not done that here because the existing files are
already very massive).
Additionally, attempting to work around this issue by taking zones in the
Project Bin and then pulling them into the timeline from there also seems to
cause the same issue, where I get clips that have my game audio duplicated
instead of having my mic audio in Track 1 like they should.
I have attached my project file in hopes that it may help (edited internally
slightly just to protect my privacy), and I have also recorded a video of this
behavior in action: https://youtu.be/dMrLMppDHWM
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