Changing sample rate - kind of strange? Wavelab and RME?

Wavelab and my rme hdsp9652 don’t play well together… consistently fails to play or freeze up, sometimes it will play… most of the time I’ll hit play and nothing happens.
I gave up and instead of asking I just use the basic driver.
(I only use wavelab for playback/edit/mastering) so don’t need record.)

I don’t get this issue in any other app or daw, would be nice for it to be fixed