This is a bit surprising, due to the complete lack of QA that accompanied this latest update, but I just got off the phone with cakewalk support. They confirm that there is a serious issue with the latest update, and the only remedy is to install the original version. You cannot downgrade from X1a to X1. Basically the problem is that sonar cannot find your ASIO device. I am using a zoom r24, and that is my only option to interface to it.
So if you use asio, especially if you use a zoom r24 as your interface, I would advise you do NOT install this until they get the issue rectified with another patch.
Cheers,
David J.