I can't type a plus sign or underscore on my 2019 Macbook Pro
Suddenly I have discovered I can't type a plus sign on my Macbook Pro (running Big Sur 11.6). I have an external keyboard with numeric keypad - neither the laptop's keyboard or the external keyboard will type a plus or underscore. Did I do something or mistakenly click a setting or is this due to a software update? Help!
MacBook Pro 16″, macOS 11.6