Hi,
I am sorry but I really don't know what to do with this. I added another video track (the one which you can see in front) to my project. But they mixed up together with the track I already had there - the second video track is visible where is originally the black surrounding around the first video. Check the picture. I have no idea what to do with it and I am quite lost. Could you please help me? I didn't do anything special and I haven't experienced this yet. How to split these two video tracks and have just black surrounding around as it was before? Thanks!