GIF here: https://i.imgur.com/uUCNAcC.gif
This is switching between Write and Engrave modes. Oddly enough, I don’t get this result when I switch to Play mode, then to Engrave mode. The issue persists, not a one-off. I’m running a 4K screen on a Windows laptop, if that’s important.
Not asking for anything actionable as I can work around it, just FYI.
Project file here, though I don’t know that it’ll be helpful. Dropbox - Wake Awake for Night Is Flying_Wachet.dorico - Simplify your life