They all still playback perfectly fine in the TV app on my MacBook Air. That is why I am calling it a bug.
I can open them in another app on my iPad but transferring is a pain since I can’t just plug in and sync it.
I understand the underlying content security issues but there are plenty of other apps that allow you to copy content and play it back off of an iPad (Netflix, Hulu, Sling, etc.) This was all litigated before with VCRs and the DCMA, but if Apple is truly worried, they should let people know. And fwiw, your continuing insinuation that I am doing something wrong is not helpful, if it isn’t a bug particular to iOS 13.4 why does the exact same content play back in iOS 13.3 and in the Mac desktop apps?