So here's my problem, I am trying to take out a sign that someone is carrying right in front of my camera during a speech. So at first I tried doing this in premiere, then I saw it would be better in AE. So I created a sub clip and transferred it to AE using Roto Brush. So the clip contains the first frame with the sign on the edge of the shot on the left and then at the end of the footage the sign goes off screen also on the left side. But when I go to the end of the clip which has a few seconds left at the end of the clip and I am not able to do anything with it. It seems the play head is stuck.
Is your composition length long enough? Go to Edit>CompSettings increase the length a bit and hit ok.
Thanks, that did it.
no problem. Glad it wasn't something serious