One recurring issue I’ve had on iPad are frequent crashes when dragging an existing slur or 8va line to extend it in write mode.
I haven’t seen this mentioned elsewhere, but I’ve experienced it on two different iPads now in multiple files. The program hangs (not every time, but often enough) and then says “an error occurred” after I close the window and reopen. I have to completely close Dorico from the app switcher and then relaunch to get it working again, and usually lose the last minute of work.
I’m using Apple Pencil to drag the slur or 8va if that makes a difference.