Overbridge control panel now can't change RYTM output routing

I recently updated my Mac firmware after a few years, and all the Overbridge apps for the RYTM also. Now as shown in the picture, it won’t allow a change from stereo to multiple channels despite the fact I’ve used the same USB port on the back of my Mac screen for years. I’m running a macbook pro plugged into a 27" Mac screen and my two measly USB ports on the laptop are already operating other gear. When I unplugged that stuff and ran through the laptop ports I could use it and funnily swap the settings over, then plug the RYTM back into the rear USB port on the mac screen and no issues with sound etc. So I have a small workaround, its just annoying considering i’m swapping the output settings between some projects and its had no problems doing so on previous firmwares and version of the OB control panel.
Has anyone had this issue?

Did you update rytm too ?

Yep, all up to date