[PC-Origin]Constant ghost MOUSE5 button input; "Clear Bind" prompt issue as well

After about 6 hours of gameplay, I swapped two keybinds and now have a permanent issue within the keybind editor section of the settings, and errors in game. I originally had the "Specialist Gadget" key set to MOUSE4, and "Gadget" to "C". I swapped them and from then on out the game acts as if I am constantly holding down the MOUSE5 key (which I had bound to "switch to grenade" earlier). When I try to clear key binds in the "Mouse" section of the bind editor, I am prompted to hold the xbox menu button (=) to clear the bind instead of "Hold ESC". This specific prompt error only shows up for the Mouse section of the keybinds. Holding ESC does not work. I have no controller connected and am playing on PC (though I later tried to use an xbox controller to edit the keybinds, with and without the keyboard/mouse plugged in and the game still received MOUSE5 input; it seems to be an internal issue and is independent from my actual hardware). When I try to cancel it instead replaces the selected input with "MOUSE5". In matches, the game acts as if the MOUSE5 key is being constantly held down, with whatever it's bound to reacting accordingly. Originally this meant that I would constantly be switching to my grenade slot regardless of actual mouse input (or if I even had a mouse in use).

List of attempted and failed solutions so far:

Restarted game

Verified game cache aka "Repair" via Origin browser

"Update" via Origin browser

Restarted computer

Reinstalled game

Ran with a controller instead of a mouse and keyboard (plugged and unplugged)

DxDiag included below, game on Ultra graphics settings with DLSS - Performance and NVIDIA Reflex enabled.