Mouse button test
Does every button work?
Hover the box and press each button, including the side buttons. Right-click menus and back/forward navigation are blocked here.
What is switch chatter?
When one press registers as two clicks. It usually means the switch is worn. The test flags any second press within 60 ms of the last one.
My side buttons don’t light up.
Some mice need their software to send standard Back/Forward. Check the button mapping in your mouse app.