So I'm struggling to make this awareness clip with 16 short videos organized in a 3d open book format,each video being 'spread' on 2 pages. And my biggest problem is that, whenever the page turns, it disappears! As in, when the transition is over, the 3d turning page disappears suddenly and the video appears from under it, so it looks as if something disappered! How can I make the page turn with the video looking right? God I'm doing a very poor job explaining but I really hope someone'll understand what I'm talking about! Thanks so much!