I got a couple of very short clips from the editor (4 and 5 frames each). They were shot @ 29.97, verified by opening the source files in QT. When I import the footage into AE, though, the frame rates are weird. One is sets to 30.090 and the other 30.151. Also weird is that on playback, the first two frames are frozen (even though there should be motion) and the last two frames of motion get cut off. Setting the interpretation back to 29.97 drop frame doesn't fix it.
After not being able to figure out why it's happening or how to fix it, the editor sent a longer clip (16 frames) and the problem went away. Any ideas why this happened? Was the clip just too short for AE to handle correctly?
I'll say they were too short. It shouldn't be too much of a problem to just talk to the editor and find out how much to use.
Nice thought on how it was intended to turn out, but didn't work out well. I wouldn't be surprised to learn that those really short clips were in a codec that AE isn't on good terms with.
It might be h.264, maybe AVCHD, maybe an mp4 or something else.
I don't know what it was originally shot on (green screen shots have been RED EPIC), but the clip I was sent is standard ProRes 422 HQ right from the episode edit. It'd be interesting to see at what clip length the problem pops up. 16 frames is fine, 5 isn't.