With the AE 13.5 update, I'm having some issues Rotobrush. In previous version, using the Spacebar in the footage window allowed you to play from the current frame, but in CC 2015, the playhead returns to the beginning of the Rotobrush Span, calculates everything back from the center keyframe and then plays from beginning of the span. This is only for Rotobrush. With out it, spacebar will function correctly and play from current frame. anyone else having this issue?
Rotobrush in 2015 is still a bit fouled up. You can use the Cmnd/Ctrl + right arrow key to propagate. Setting the Preview Panel options for playback to Num Pad + 0 seems to help but it's not nearly as useful as it is it is in 2014.