I'll write here since the topic concerns MacBooks. There are no problems with the gameplay, except for the hotkeys.
More precisely, some hotkeys even work (split the stack equally and remove a single unit from the stack).
But the following hotkeys don't work:
a) exchanging items between heroes in a town,
b) transferring the entire army to another hero, except for the unit you are holding,
c) maybe a couple more hotkeys don't work.
And that's annoying. The timer is running, you don't have time for anything, and you have to do everything manually...
I'm waiting for your advice.