Dorico 3.5: Can't get NotePerformer working

I have NotePerformer installed, and it was working fine in the previous version of Dorico. But having upgraded, projects that use NotePerformer won’t play back. NotePerformer still appears as an available playback template, but when I select it the instrument bank shows as “!! NotePerformer !!”, and NotePerformer is not available as a VST instrument to add. How do I resolve that?

read this At least one of the solutions will probably work for you.

Thanks, yes, one of them did. I hadn’t found that thread when searching for a solution.

Glad to hear. You probably won’t be the last with this issue but it seems largely fixable now!