my awx 19.0.0 has stopped working

... out of the blue my AWX 19.0.0 deployed in K3s has stopped working.

I can log in, and do everything in the web UI like always, but when I try to
actually run a job, the job never starts to actually DO anything.
playbooks, ad-hoc, scm updates, doesn't matter - nothing works. And because of
the whole Kubernetes "situation" I don't even know where to begin looking for
a reason...

Any suggestions?

Cheers
MH