Sorry for the necro reply, but would you be able to explain Step 3 a little bit further in detail, please? I can't find a file w/ that name even after using the search function in file explorer on the C: Drive
Just saw that you're also using a Xbox style controller (I'm using a Gamesir G7 SE) so figured I'd share some troubleshooting w/ you that worked for me. First, make sure that Steam Overlay is enabled before launching the game. To do this, look in the top left corner of your main Steam window...
Try enabling Steam Overlay before launching the game. I was experiencing problems like you are (only right stick camera worked, couldn't move w/ left joystick, etc.) and then for some reason enabling Steam Overlay fixed it, mostly. Had to redo any button keybind that wasn't directly translating...
FYI, enabling Steam Overlay will fix the issue, at least it did for me anyway, but it feels worse than before. Had to re-bind all buttons to actual keyboard and mouse inputs instead of the Steam Input actions. Only one of those that still worked was movement on the left stick. Left stick now no...
Also experiencing this on a Xbox Series style controller. My custom layout is now completely borked besides my camera, jump, and ability buttons. Discovered like you did that any and all steam input mappings don't work now, only ones that are directly translated from keyboard presses. Even their...