Bug 511070

Summary: Crash while project monitor playing and recording microphone
Product: [Applications] kdenlive Reporter: squeaks <bigsqueaks>
Component: Timeline & EditingAssignee: Jean-Baptiste Mardelle <jb>
Status: NEEDSINFO WAITINGFORINFO    
Severity: crash CC: fritzibaby
Priority: NOR Keywords: triaged
Version First Reported In: 25.08.2   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Kdenlive project file

Description squeaks 2025-10-25 05:55:51 UTC
Created attachment 186121 [details]
Kdenlive project file

SUMMARY
I had been editing a timeline and recording myself speaking into an audio track on the timeline. At one point I was allowing the timeline to play and decided to record my microphone. My microphone was recording to audio track 4.

Trying to re-open the project results in loading clips then "building sequences" crashes with no errors, just terminates. The application was mentioning the crash and offering to open autosaves, but it is no longer.

STEPS TO REPRODUCE
1. Start kdenlive.
2. Open project file.

OBSERVED RESULT
Loads clips, loads timeline, builds sequences and crashes without error.

EXPECTED RESULT
Loads project and waits at timeline.

SOFTWARE/OS VERSIONS
Windows: 25H2 26200.6901

ADDITIONAL INFORMATION
As stated, was recording with microphone when it locked up. I can't remember the window box that appeared over the main application window, but it was unresponsive. It's probably important as part of the clue to what is happening. Windows intervened and said it looked like it was unresponsive. I waited a bit then clicked the X. Now I observe problem as stated trying to open the project.
Comment 1 emohr 2025-11-19 08:48:20 UTC
Thank you for reporting

Please upload here the "corrupt" project file so we can check more in depth.
Comment 2 squeaks 2025-12-10 10:17:43 UTC
(In reply to emohr from comment #1)
> Thank you for reporting
> 
> Please upload here the "corrupt" project file so we can check more in depth.

The "corrupt" or terminating upon opening project file is attached with the bug report.
Comment 3 emohr 2025-12-21 11:57:04 UTC
I can open the project with placeholders.
One of the capture.wav files could be corrupt. Rename or move the capture.wav files to another folder. Open the project with place holders. Then try to import one capture file after another and see which one leads to an error message.

Let’s see if this fixes the issue.