I don't know if the bug has been fixed so I started a new thread.
Screen:
as you can see you get a pop-up from that event and the game stops the clock.
But there are no options you can click on. Something went wrong in that event.
It might be you can edit the game (message settings) to continue and leave the message box on screen. But it does suck a bit
Hope it helps.
(just to be clear, the demo runs really good. No crashes and I played way over 200 years
without one reload! While with Ck1 I couldn't go longer than 5 without a crash 
Screen:
as you can see you get a pop-up from that event and the game stops the clock.
But there are no options you can click on. Something went wrong in that event.
It might be you can edit the game (message settings) to continue and leave the message box on screen. But it does suck a bit
Hope it helps.
(just to be clear, the demo runs really good. No crashes and I played way over 200 years