Created attachment 139774 [details] An affected project file SUMMARY Upon making changes to a project I have spent several hours on, kdenlive freezes and then crashes. STEPS TO REPRODUCE 1. Start kdenlive 2. Open affected project 3. Make any of several changes, including saving the file, applying an effect preset, adjusting an effect setting, or rendering the file. Rendering the file results in a several-second delay before the crash occurs. OBSERVED RESULT kdenlive crashes EXPECTED RESULT kdenlive operates normally SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.12.13 (available in About System) KDE Plasma Version: 5.22.2 KDE Frameworks Version: 5.83.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION This occurs on both the Arch Linux package and with the appimage. With the appimage, it occurs in both 21.04.2 and 21.04.1. This was first noticed today, though the last time I worked on the project was one week ago, so the error began occurring in the past 7 days. Upon crashing, the command line will print the errors: terminate called after throwing an instance of 'std::out_of_range' what(): _Map_base::at /tmp/.mount_kdenliKQNSlk/AppRun: line 42: 472285 Aborted (core dumped) kdenlive --config kdenlive-appimagerc $@ Attempting to use gdb shows no debugging symbols, running kdenlive through gdb anyways and running a backtrace after it crashes gives the message "no stack". I've attached the project file for inspection, though of course I have not included the numerous raw video or audio files.
Created attachment 140442 [details] Render_Crashlog Thank you for reporting. Opening the project with placeholder I get attached error message. Starting rendering (to MP4)-H264) I get a crash. Attached the log.
Git commit e84437b039e474db637d6b9430a791bb2d5782c6 by Jean-Baptiste Mardelle. Committed on 01/08/2021 at 13:24. Pushed by mardelle into branch 'release/21.08'. Fix crash on render/save when subtitle track was last active track. M +3 -0 src/project/projectmanager.cpp https://invent.kde.org/multimedia/kdenlive/commit/e84437b039e474db637d6b9430a791bb2d5782c6
This has hopefully been fixed now for the next release 21.08. Please test with the nightly version and close this report if it is fixed. Thanks again for your contribution!
Created attachment 140467 [details] Render-Time I don't get a crash anymore while rendering. But it takes 3 hours for rendering a 34 minutes video with placeholders to MP4 (the CPU is 15% loaded)!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!