I don’t know if modifying these files had anything to do with it, or if it’s a conflict with AJA drivers as suggested in a thread above, but prores footage imported to AE is getting clipped right at 100 upon import. Nothing I do once in AE to the footage seems to stop this happening. If I apply a filter to lower the brightness, the clipped section is still there (just lower in the waveform). How can I avoid this happening?
Ok, so I made the changes to those files. It says color management must be turned on for this to take effect. I’m not sure which profile to use. I don’t see anything that pops out as a prores profile under the “working space” tab.
Yup, it turns out the bad timeline had a field dominance of none, the good one of Upper. I’m not sure how I ended up editing in a timeline with no field dominance, I suspect it came from dropping in some footage and saying Yes to making the timeline change to match that footage.