Traefik Dashboard shows error "unknown TLS options: xxxxxxxxxxxx-tlsoptions@kubernetescrd"

I'm using V2.2.1 with an https ingress route that is functioning as expected (the application works just fine) with no errors in the traefik logs. However, the dashboard shows the Router in Error as above. The only reason I noticed this is we have the same error in a dev cluster, also running v2.2.1 - and this is not functioning as expected - the application doesn't work, it doesn't respond in any way, so it's clearly an ingress issue not an app issue!!

Any ideas as to what the error means and whether I should worry about it?

Thank you..

Hello @jeremypope ,

Could you share a minimal reproducible case?