Here’s a few odd things I’ve noticed:
In ENGRAVE mode, double clicking outside of a music frame still takes you to WRITE mode.
Right-clicking outside a music frame still gives you a contextual menu that is out of context: Stem, Beaming, Octave Line, etc. You get the same items right-clicking on a graphics frame or text frame.
Dorico ought to give more indication of “progress”. After clicking “Print”, has anything happened? Changing Music font: nothing happens for a good few seconds, before the change takes place.
However, I have to say I’m enjoying it very much. Just waiting for acceptance of my Cross-grade entitlement.