Assigning plugin but it gives me Dorico Beep instead

Hello, I am adding a VST plugin instance and am able to see it inserted, but when I click on the edit window, it reveals Dorico Beep instead (see picture). Is this a bug or is there something I am missing? Thanks.

Hmm. That’s not right. Have you quit and restarted Dorico?

Yes tried restarting but it didn’t help