As a follow up, I opened a crashing older project in safe mode and systematically removed one Waves plugin at a time, starting with the first in the selection box, then followed with “Yes to all”. It would then crash and I’d start over saying yes to the previous Waves plug I said no to, then saying no to the next one, the “yes to all” and so forth. Only changing / removing one plugin each time. When I got to Abbey Road Chambers and didn’t allow it to load, everything then worked fine. No issues after that, and no crashes. Sounds like possibly a problem with maybe the Abbey Road V12 bundle install? which I had just added the new RSS124, and had to reinstall and activate the entire bundle. So I’ll try the “repair” option in Waves Central. Thanks for that tip, hoping it works!