u/nergalelite

Weird, with a workaround already.

Reopened a project after some time and a frame of the recording flickered to black screen, tried to cull around it and shift the clips back together, same millisecond frame flashes a black screen, try closing and reopening project, same frame all-black.

Current workaround: Shift clip to a different track for the burnt-in frame and it plays through without the flicker to black.

Did not attempt to export with the flickering frame in place. Unsure what the root cause is/was. Speculating about where the preview is held in memory/on disk, but I also didn't fully reboot my PC.