Thanks for the information provided to the Illustrator team.
We are able to reproduce this issue at our end and the engineering team is currently isolating this issue further to get to the root cause.
With Best Regards,
An error occurred while saving the commentJohan commented
There's some kind of conflict regarding the input or something. If you type a bunch of spaces in the address-bar in whatever browser you're using, the hand tool becomes available when pressing space in Illustrator. No need for closing software, at least not in my experience.