Running core on a m1 Mac mini. No problems with core typically.
The issue is Identification. It is “stuck” not identifying songs, the little arrow keeps going around and round. Playback is fine, its just annoying to have that there and identification not happening.
Happens to me on my m1 mini. If I add in roon too many albums it hangs like that, and the added ones are not displayed on the Home recently added. A Roon Server app reboot on the mini usually helps (sometimes better restart the comp). After that I find the albums were added and all is ok. Sometimes I blame HQP that runs on the same mini, must be eating the cpu and roon gets slow to very slow and hangs like that. It gets worse if days are passing by without a restart, 5 or 7 days. It gets on my nerves and I just add albums from tidal app
The other message, Metadata improver, I have never seen.