This never happened in the past. But now has happened twice in a row between having my computer shutdown. So it appears it's a bug in After Effects CS6? The problem is, when I split a layer and then try to arrange the new split layer so that it uses different in-out points within the clip, when I try to play it back, the new split layer reverts back to the original in-out points. I know After Effects isn't supposed to be used as a Non-Linear Editor but I would hope it would be able to perform this very basic function properly.
Any idea what the problem is and if there's a viable solution??