Cluster behaving oddly

[M0TNX]

I am running the BETA 2.20.0.1

Until today the cluster seemed to work well.

I am seeing spots on DXSummit that aren't appearing in the bandplan on the right of my screen.
The filters have not been altered.
Is there a way to re-set and retest the cluster?

Thanks as always

[M0TNX]

Scrap this, reboot of machine cured it.

apologies for any inconvenience