I'm not entirely sure if I have a unique problem but I can't find a fix so here goes. I have recorded a video and during the whole of the recording the preview screen was fine and detected my video. However, I go to edit and the preview screen is black. When I click on this screen my video shows but when the cursor goes anywhere but this screen, it goes back to black. I go to render and upload and as it is really just a test it is unlisted, however there is no video picture just the sound. Is there any help?