and after a break from Mb loaded up again went into album covers and again it has crashed
MusicBee v3.3.7310.31925D (Win10.0), 29 Jan 2020 17:59:
System.NullReferenceException: Object reference not set to an instance of an object.
at #=zwJ4nj4hTrls$Lq1WxEyKRUQ=.Dispose(Boolean #=zJMbc_B8=)
at System.ComponentModel.Component.Finalize()