Black screen in caer lem

Hi, 

Where? After the video in caer lem, when the doors open in the first visit. 

As soon as the video ends and the doors open, the screen should change, but I get a black screen (only see the mouse arrow, and hear the music).

There is no way to solve this.

I am running this on a MacBook pro with Big Sur (11.2.2) M1 chip with 8 GB memory.

This is a fresh saved game, I bought it and installed it yesterday