Created attachment 183069 [details] The project file that exhibits the described problem Fedora's problem reporting app lists the following after the crash: mlt quit unexpectedly 7.32.0-1.fc42.x86_64 https://retrace.fedoraproject.org/faf/reports/bthash/24e05cae227ce92349a1e6c36af2c53054e93d13 --- Running report_uReport --- ('report_uReport' completed successfully) --- Skipping collect_GConf --- No matching actions found for this event. --- Skipping collect_vimrc_system --- No matching actions found for this event. --- Skipping collect_vimrc_user --- No matching actions found for this event. --- Skipping collect_xsession_errors --- No matching actions found for this event. --- Running analyze_CCpp --- Generating backtrace Backtrace is generated and saved, 109961 bytes --- Running analyze_BodhiUpdates --- Looking for similar problems in bugzilla Reporting is disabled because the backtrace has low informational value. SUMMARY STEPS TO REPRODUCE 1. Try to render WK.kdenlive. A project file with several mostly uncut video files using the Ut video codec that OBS uses when you choose for uncompressed video capture 2. Render the project in H.264 (not hardware accelerated) settings won't matter 3. Wait until render is at 99% OBSERVED RESULT The render will crash every time when the render at H.264 is almost finished at the very end in Kdenlive version 25.04.3. The rendered result seemingly is fine when played back. EXPECTED RESULT The render will finish succesfully. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.2 KDE Frameworks Version: 6.15.0 Qt Version: 6.9.1 Kernel Version: 6.15.3-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor Memory: 32 GiB of RAM (31,2 GiB usable) Graphics Processor: AMD Radeon RX 6700 XT ADDITIONAL INFORMATION I have tried reproducing this error in the daily build: kdenlive-master-10539-linux-gcc-x86_64.AppImage The render worked just fine both times I tried. While using version 25.04.3, whether that is the Fedora Flatpak or the Fedora dnf packaged version both exhibit the described crash. The version first reported in is set to 25.04.4 because 25.04.3 was not in the list.
Created attachment 183070 [details] The log file created after the crashed render occured
Created attachment 183071 [details] The terminal output of Kdenlive while rendering and the crash is going on
Created attachment 183072 [details] Log file of another try at rendering
I've been able to determine that the render crash was caused by the typewriter effect that you can enable on Title clips. I adjusted the title to reflect this.
(In reply to Rick from comment #4) > I've been able to determine that the render crash was caused by the > typewriter effect that you can enable on Title clips. I adjusted the title > to reflect this. To reproduce this 1. Open Kdenlive 25.04.3. 2. Right click in the Project Bin. 3. Click Add title clip... 4. In the Title clip window, click once on the left section to create a new textbox with the text "text". 5. Enable the typewriter effect checkbox on the right. 6. Click create title. 7. Drag and drop the title clip you just created into the timeline. 8. Now render this project into a video format. Settings won't matter 9. Observe that the render will almost finish but then show the following error: "Rendering of -filename- crashed"
Created attachment 183101 [details] Terminal output of gdb kdenlive when bug is triggered
*** This bug has been marked as a duplicate of bug 503634 ***
Created attachment 183103 [details] Detailed log provided by crashed processes viewer aka drkonqi-coredump-gui