Separate names with a comma.
...aaaand I've just got an update to Parallels 17.1.0 (51516), it solved the keyboard issue! So, if anyone is having the same problem, and when...
I'm having the same issue on a 2018 Mac mini with macOS 11.6 and Parallels 17.0.1, VM running the latest Monterey beta. Keyboard stops working in...