Hello,
so I've been creating some scenes with Keyframes, taking a video and cutting out a character with them. Everything is perfect.
1. When I turn the computer off and on again the next day they jumped away.
2. When I render the Scene the video looks as if the keyframes are delayed. When I look at it again everything is fine.
I'm not sure what's going on 
I hope someone can help me with it. 
please?