Stage Window

Might be a stupid question, but I cannot find the answer. My problem is that whenever I export a video to a movie (.mov) format, the end result when I watch it is just a blackscreen. Does this have to do with the window I have open on the main viewing stage or something, because I have tried all of them. I mostly just keep it on camera.

Do you have QuickTime installed on your computer?
You should try to update it, it’s useful to Toon Boom softwares.