Choppy editor playback after exporting frame

stoshm Posts: 1 Just Starting Out

Since I've upgraded to the March 17th HitFilm Express release, if I export a frame the entire clip become unstable. When playing back a clip in the editor, the entire clip intermittently flashes to a solid black box instead of a smooth playback. Eventually the trimmer goes solid black, too. This also happens if I try into include text in a frame in the editor. I've tried a few different clips in different projects and the same problem was replicated. The clips play back with no issues in other programs.

Any ideas how to fix this?