I'm sorry, refunded my Muse2 so I can't test.
Did you run the game after connecting the Muse 2? (It doesn't check regularily, so the order of program starts is important)
Did you try downgrading Bluemuse? (dunno if this will run under Windows 11)
Another idea would be running both Bluemuse and the Mind Game as Administrator.
If those steps don't work, please post the Logs of Bluemuse:
https://github.com/kowalej/BlueMuse#logs