There have been rolling restarts on most official servers in order to temporarily work around an issue causing folks to become unable to corrupt their stats (or end up getting reset).
We attempted this earlier in the day, but the fix did not propagate. We identified the cause internally and gave it another go somewhat recently.
There is also a known issue causing MS Game Pass players to see invalid servers, which is a much more involved issue that server restarts won’t fix. Hopefully it’s not that. 