First off, thanks for your input. I am determined to get this to work. But I’m a bit confused on this point…
Deleting the cue buses from the studio tab deletes them from the cue send rack on the mix console, which typically you don’t want to do. Do you need to do this only when using VST Connect to free up a cue bus? (Of course, you always leave the cue buses unconnected to avoid the echoing[double bussing?])