Bug 514224

Summary: Kdenlive crashes if you try to copy a sequence in the timeline
Product: [Applications] kdenlive Reporter: vkdesign <vikaskumar2299>
Component: Timeline & EditingAssignee: Jean-Baptiste Mardelle <jb>
Status: NEEDSINFO WAITINGFORINFO    
Severity: crash CC: berndmj
Priority: NOR    
Version First Reported In: 25.12.0   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Steps to reproduce

Description vkdesign 2026-01-06 12:40:31 UTC
Created attachment 188264 [details]
Steps to reproduce

SUMMARY: Kdenlive crashes if you try to add two PNG clips in timeline then create a new sequence from it, then try to copy the sequence in the timeline itself (either by Ctrl + CI or Right Click menu).


STEPS TO REPRODUCE

1. Create a new 1080p @ 25 FPS project
2. Add a PNG in timeline. Copy paste same clip next to it.
3. Select both of the items and create a new sequence
4. Select the newly created sequenced clip, press Ctrl + C to copy it
5. Kdenlive crashes

Please see the attached GIF.

SOFTWARE/OS VERSIONS
Windows: 11
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version:
Comment 1 Jean-Baptiste Mardelle 2026-01-08 08:39:37 UTC
Thanks for your report. The issue has been fixed in the upcoming 25.12.1 release, you can test our daily build to confirm:
https://origin.cdn.kde.org/ci-builds/multimedia/kdenlive/release-25.12/windows/
Comment 2 vkdesign 2026-01-08 17:40:21 UTC
(In reply to Jean-Baptiste Mardelle from comment #1)
> Thanks for your report. The issue has been fixed in the upcoming 25.12.1
> release, you can test our daily build to confirm:
> https://origin.cdn.kde.org/ci-builds/multimedia/kdenlive/release-25.12/
> windows/

When will this version be availabe publically?
Comment 3 Bernd 2026-01-09 17:29:54 UTC
(In reply to vkdesign from comment #2)
> When will this version be availabe publically?

Hopefully next week. But please try one of the latest builds as per JBM's suggestion (link provided) and confirm that it is working for you, too. Thanks!
Comment 4 vkdesign 2026-01-12 05:58:50 UTC
(In reply to Bernd from comment #3)
> (In reply to vkdesign from comment #2)
> > When will this version be availabe publically?
> 
> Hopefully next week. But please try one of the latest builds as per JBM's
> suggestion (link provided) and confirm that it is working for you, too.
> Thanks!

Yes, it's fixed in the test build.