I commented this on the OP:

Probably a dumb question, but I started playing it, went to check controls and accidentally tried to change the control for changing weapons. When I went to set it back (scroll up or down) it’s not accepting scrolling as an input. Does anyone know a solution? Or if one exists? There’s no option for reverting to default configs.

Hopefully someone will see it on the crosspost here and can help out.