Davinci ignoring Delivery settings change


I'm not sure how to reproduce this. The project is from V19 and upgraded to 20 beta.
The DRP is at https://drive.google.com/file/d/1Mth9Ov ... sp=sharing
It feels like any change isn't pushed through, but it's only the file settings, all timeline and other edits work perfectly.
Same thing happened with a new project in Beta 3.