After watching a cutscene in the cube (story-related), I get a black screen

[maiden bison]

Restarting the game doesn't help, the same thing happens again

How can I solve this problem?

[dim mesa]

Can you share your qualia in the firmament and tell me the name?

You will have to load a back up as seen on the help page of the website, but I want to fix it for everyone else at least