I've been using the flatpak on my Steam Deck for a few months to stream from my laptop and using my 8BitDo Ultimate 2.4G Controller with the USB dongle, but suddenly Steam Link isn't reading the controller's input once it connects to my laptop.

When I launch Steam Link, it lists both the USB controller and the Deck's built in controller, I can select the one that registers input from the USB controller, connect to my laptop, and then it stops taking input from my USB controller one it is in Big Picture Mode. The button icons on screen show the icons for the Deck's controls, and I can use the Deck's inputs just fine, but nothing I change seems to allow the USB controller to be used. Any help is appreciated!