Roon core not responding

I am running RoonServer v1.6 (build 416) stable on linuxx64 on my ubuntu NUC. I recently changed the password on my music NAS and now my roon remotes cannot find roon core.

My roon core is connected to the router via an ethernet cable. I see my NUC listed under the attached devices on my router and I’m able to ssh to it. So it is not a network issue.

I tried uninstalling and reinstalling roon core, but it did not solve it.

The problem was a new album that I had added. I disconnected my NAS and restarted my NUC and it came back up. I selectively removed some network folders and was able to isolate it to a folder. Dont know why these FLACs crash roon. They seem to play fine on vlc.