Intermittent Black Screening

[Fortelleren]

hi,
I've tried SSAO and the advanced settings both on and off. I seem to be able to replicate it when just entering into the area after the 'Old Archives'. I go up the flight of stairs and to the right past the barred door and it seems to predictably happen when crossing into the room at the end of the walkway.

I've enclosed a new log file that was saved just after the blackscreen.

Thanks