Another symptom: When first going to an Artists Album page the Albums flash immediately for a half second or so, disappear, wait 20 seconds or so and then they reappear.
I was trying to show a friend last evening how awesome Roon is, and this happened. He is a very senior SW Engineer. He just said “clearly not ready for prime time”.
It looks like my fledgling attempt as an evangelist is limited by the platform.