SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** Kdenlive seems to leak infinite memory, probably related to having to manually copy-paste clips to mimic a loop function. Please fix the leak and implement a loop function. It's highly inconvenient and undynamic/static to have to copy-paste in a potentially hour-long project. STEPS TO REPRODUCE 1. Install Kdenlive 2. Create a mid-size project (e.g. 1hr mkv clip with audio, add a few simple texts/images with fades) 3. Manually copy-paste grouped clips 4. Around 30min length, especially when maneuvering the timeline (scrolling, zooming), Kdenlive becomes drastically slower. 5. Continue further beyond 30min/1hr 6. Zoom/scroll on timeline 7. Try inserting more clips OBSERVED RESULT 1) Seeming memory leak, probably due to mass copy-pasting clips. RAM keeps goin' up whenever inserting a new "loop iteration". At some point the app must be closed and restarted to set back RAM use to about 40% of the previous although Kdenlive will still suffer heavily from observation 2. 2) Kdenlive becomes highly inconvenient to use due to drastically slowing down. EXPECTED RESULT I should be able to handle at least 1 hour long, not animation/effect heavy projects. RAM shouldnt indefinitely scale when I maneuver the timeline. RAM & app speed shouldnt be affected as drastically when I have to loop / insert / copy-paste / move clips. SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE neon 5.27 x86_64 KDE Plasma Version: Plasma 5.27.10 ADDITIONAL INFORMATION 32+GiB RAM, good AMD CPU, occurred on all my >1hr projects