I have made a video, which contains, in parts, overlays of one video [in top right corner, i.e. inset] over another, however, in some parts it works fine, but in others the main video does not show, only an blacked out screen, except for the small overlay in the top right corner. If I remove the overlay then the background is fine [where it's the only video].
My background is set as video 1, and my overlay [inset] is video 4. I really don't know what happened to videos layers 2 and 3, or how to reveal them as I cannot see them on my screen [jumps from 1 to 4]. Not sure if that's part of my problem though.
Any ideas where I'm going wrong, or if there is a setting in the overlay that says that any piece of screen not used by the inset should be blacked out?
For info I use the following FX on the inset: Scale 0.4 / 0.4 horizontal/vertical ratio, and position 27 / -27
thanks
Diarmuid