Cross-posted from the Reunion thread:
I'm in the Lifestream where Tifa and Cloud are piecing things back together, and I just watched the scene where Cloud stabs Sephiroth in the reactor.
When Cloud checks on Tifa, the camera pans up to Sephiroth holding Jenova's head, walking down the stairs, but it's the original SD sprite.
In the next shot, Sephiroth is walking out of that room holding Jenova's head, but he's not SD.
Maybe you missed a shot, or maybe there are complications there I'm not aware of. Thought you should know, regardless.