Magic Mouse 2 is not discoverable on iMac 21.5-inch, 2017
The mouse works on my MacBook Air. It is fully charged. It was connected and it gave a Mouse Disconnect message on screen when turned off but there was no Mouse Connected message when turned on.
I 'forgot device' and restarted, but the Magic Mouse doesn't come up as discoverable any more.
(The computer is incorrectly named Marvelle Karahadian's Mac mini. That is a previous Mac that we moved from.)
iMac 21.5″ 4K, macOS 13.6