SteanLink + Logitech Webcams

I have had the Logitech C90 and C99 webcams (one at a time) working on the SteamLink w/ Virtual Here for a long time now.
I just purchased the DLC to enable multiple devices on the device, and now Virtual Here wont detect any of the webcams anymore.

Even after removing the DLC, the device will not work.
Anyone else having such issues? and what is the solution?

#2

Do the webcams appear in the steam link -> VirtualHere menu?