Upgraded and tested with Sonic port (non-vx) Uberchord and Tonebridge apps, all seems to be working properly now.
update: just tried bias fx, bias amp 2 and mobile pod out of curiosity, all is working!
I'm upset like everyone else about this but one word of caution. I bought the irig HD 2 a couple weeks ago. Mostly it works ok but I would say that the sonic port is better. I plug my audio interface into a speaker and with the irig it often disconnects and I have to power off/on the speaker to get it working again. Never had this issue with the sonic port. If they are working, I will keep them both but I would never use the irig if you have to perform somewhere.
Yes! I upgraded this morning and my guitar apps are now working through my Sonic Port. So far, the only app I'm still having an issue with is Tonebridge with the Sonic Port but that's a minor irritation for now. Upgrade worked for me, I would advise others to upgrade to 13.1.3.