this worked! i trashed the license. opened rack, then downloaded host again from the library, restarted rack, and it all works now. thank you so much
i wasn’t trying to use au stuff with host, i use host to run vst.
i was just trying to figure out what the error codes meant, and it seemed like it was pointing towards an apple au plugin that was causing the error. but i was wrong, it was a corrupt license i guess, trashing it worked!
Great! Happy to help.