On my NES Mini using RetroArch, I can set “User 1” to be “Keyboard + Mouse” and I can go down and change the keybinds for User 1 just fine, by pressing left / right to change the setting.
But if I set “User 2” to be “Keyboard + Mouse” when I go down to change the keybinds for User 2, I’m blocked from doing so. Trying to change the setting by pressing left / right has no effect, the setting stays as —