Bug 489114

Summary: Rendering crashes when title clip with Typewriter effect is enabled
Product: [Applications] kdenlive Reporter: michel29cloarec <michel29cloarec>
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: RESOLVED WORKSFORME    
Severity: crash CC: kdebugs
Priority: NOR    
Version First Reported In: 24.05.1   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: This attach ment contains the crash reporting conditions

Description michel29cloarec@gmail.com 2024-06-24 16:30:29 UTC
Created attachment 170915 [details]
This attach ment contains the crash reporting conditions

I made several attempts using different settings for the "Typewriter" option (per characters, words, lines), as well as several rendering options that all lead to a crash.
Simply stopping the "Typewriter" mode allows you to resume a good rendering function.
I understand that the timing of character generation is not compatible with encoders.
Event Log mentions a time stamp issue.
Excuse me for the mediocrity  of my English ...
Comment 1 Raphael Rosch 2025-09-09 02:54:24 UTC
Confirmed on fedora 40 (linux) with kdenlive-25.04.0-3.fc40.x86_64

Steps to reproduce:
-create new project
-add title clip
-write text in the clip (two words will suffice)
-enable "Typewriter effect" (Eg: by char, frame step: 2)
-drop title clip onto timeline
-attempt to render (I used h264/aac)

popup appears with:
 "Rendering of /home/user/untitled.mp4 aborted, resulting video will probably be corrupted.
Frame: 84"
Job queue says "Rendering crashed"

video plays correctly with the animation displaying correctly (I used vlc)
Comment 2 Jean-Baptiste Mardelle 2025-09-09 04:55:10 UTC
Thanks for your report. This has been fixed in the latest 25.08.0 version, available from our download page:
https://kdenlive.org/download
Please update and test to confirm.
Comment 3 Raphael Rosch 2025-09-13 06:03:47 UTC
Thanks Jean-Baptiste. Once it appears in my repos I will upgrade and test.
Comment 4 Bug Janitor Service 2025-09-28 03:46:16 UTC
๐Ÿ›๐Ÿงน โš ๏ธ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 5 Bug Janitor Service 2025-10-13 03:47:07 UTC
๐Ÿ›๐Ÿงน This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.