I've sent sr#915155 to Factory but it is unresolvable due to an unknown change for an opencv dependency. Further, I may have to revert the change because the answer I received from https://github.com/mltframework/mlt/issues/274#issuecomment-908506034 states: I do not know; I doubt it. I have not reproduced it, and it has been a lone time since I tried. I generally avoid OpenCV now due to its version compatibility problems. Also, no root cause was identified. It is my understanding the Kdenlive AppImage includes OpenCV, but I do not do much with kdenlive. The bug in question was first found by a kdenlive user and was present in both kdenlive and shotcut. The fact that the Kdenlive AppImage includes OpenCV would indicate that there isn't a problem