Assuming this is an Amazon module specific issue? Or does it affect only scheduled stuff?
As you well know, when you try to download something from NF and hit a similar snag, you get the post-download warning that although you selected h265 Dolby Vision blah blah blah, you got h264 instead.
MrGrackle
Only Amazon simply because it's the only one with the H264/H265 radio buttons. Actually maybe it could happen with Max but only if they don't upload both versions at the same time.
Nothing to do with scheduled downloads unless you know exactly the time new episodes of shows are uploaded and try to download them right away.
Different channels have different upload times for different shows. The most annoying one is AllBlk. A show airs Friday night and it is up on Amazon the following Tuesday morning.