I've run into an issue with Risk of Rain 2 on my steam deck, where it no longer accepts controller inputs. In settings, under controller options, most inputs are labeled with an error saying there isn't a controller input mapped to the command. If I try registering controller input, nothing happens at all, and the issue persists.
This issue only started appearing after I tried hooking my steam deck up to a dock, during which time I had tried playing with a PS5 Controller. I'm assuming this triggered the bug, since everything worked fine beforehand. Additionally, some research I've done online indicates others ran into the same issue after booting up Risk of Rain 2 (on various platforms) with controllers or joysticks plugged in.
I tried finding a solution online, but I've had no success. I've found multiple instances of people with the same problem, but there were either no solutions to their problem, or the solutions posted didn't work for me.
How can I resolve the issue of Risk of Rain 2 not reading my controller inputs?