I can concur that I have spot issues of crash again on my iphone 13 Pro Max or display issues on my ipad that usually are cleaned up by restarting the Roon Core.
I have no time at the moment to note everything, screenshot, follow a step by step root cause analysis.
I just have time to listen to music and not enough to my taste.
Roon is high maintenance when you look at what is necessary to do to keep it working properly over a year.
Only when I am hitting a big issue then I take the time and report to support thread otherwise I am using Plex for a while whilst trying 5mn here and there to solve the issue