[Bret Williams] “Oh, wait… EDITED 24p in a 29.97i sequence at LOWER first? Assuming it’s anything except a DV sequence, then it should be UPPER first. “
No if we are talking about SD.
Yes if is HD.
IMO the issue is for editing Progressive stuff as Interlaced.
Most of all if the original footage is 420.
When the footage is 420, the Chroma pattern is different for Progressive and Interlaced stuff.
rafael