Has anyone encountered an issue with Uyuni where the web interface becomes unresponsive?

I've never had this happen before in at least a couple of years usage, but over the past couple of weeks we've had it happen several times to different users and when it happens, it affects all users. The user’s web browsers report that no data is sent on page link or reload.

Manually running "spacewalk-service restart" brings it back into life within a couple of minutes.

This isn’t related to the 2022.10 update, since I've held back applying that so far and we’re still on 2022.08.

The only thing that’s changed is a couple of new users, and perhaps something is taking exception to them. (But we’re all on similar chrome + windows clients)

I've not yet done any serious debugging (each time the priority has been to get it back up), but would appreciate any tips from anyone that's encountered this.

(I’ll try and remember to run “spacewalk-service status” next time to at least identify which service is faulting)

Thanks

Simon