Roon Metadata Improver Halted

I get a notice that the metadata improver has halted. I checked my firewall settings and Roon is set up to bypass the firewall. Any suggestions?

Have you tried to reboot your core machine?

Yes. No effect

I get this warning too, might have something to do with Tuesdays update ??

Re-booting my modem/router just fixed this for me. I closed Roon on my core machine first.