Sup folks. I'm using CS5. I am making an animation with the timeline and a series of animated frames with layers. Typical stuff.
My problem occurs when I make an edit to one of the layers/frames in the animation by selecting a portion of the layer and pasting this in a new layer. It breaks the timeline. My timeline no longer displays the animation playback when I click play, as it seems to 'freeze' the last layer and only when I click on the window does it 'wake up'. Some of the little frame thumbnails also appear blanked out. Closing and reopening Photoshop does not make the problem go away. Apparently something I did with the copy and pasting in a new layer breaks the timeline.
Any help appreciated; the internet is silent regarding this bug.