A few things that are unknown are your clip source properties, Video Mode used, etc.
- clip source is proxy.
- codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
- resolution: 960x540 (PROXY)
- frame rate: 30
- format: yuv420p
- I try all video modes: opengl, directx, mesa. In all — same problem.
Generalized help is that you may have variable frame rate video that needs to be converted to edit-friendly.
I tried this, didn’t help. if you need i can make video-report with edit-friendly clips
Along the left side, are all of those applications running?
Yes, but CPU and RAM not fully loaded, exist many free resources.
Appears you have 2 instances of Shotcut opened up with a lot of other programs.
No, it’s 1 instance of Shotcut, second icon it’s “External Monitor” in settings. I try off this, didn`t help.
Do you get the same after restarting your PC and only using 1 instance of Shotcut?
Yes, i try restart, didn`t help.