Hi! Yeah it turned out that I didn't fix the problem correctly. You can read more about it in the latest 1.1.3 update post, but I finally managed to find its source and this time it really should be gone.
Got me hyped, but unfortunately the problem persists. It's the same scenario, going into the Tower location turns everything black, and when going back to the previous location it stays black. The only thing I see is the area name changing on the top side of the screen and I can enter inventory etc., but the rest is pitch black ;( I use steam and it supposedly updated to the newest version.
Aaahhh right. I might know what's the problem. Did you use the book 'Passages of Ma' habre' during this playthrough? I was pretty sure that it caused the bug. Upon the Ma'habre timer running out, the screen goes black and you return to normal world. The trigger that makes the screen go black is still left there if you load the same save, but starting a new game should fix it.
If you don't want to go through the entire game again, apparently you can make things visible again by finding the beacon of the depths and using it.
Sorry for the trouble D:
Yes, I'm pretty sure I used 'Passages of Ma'habre'. If finding the beacon of the depths fixes the problem then it's fine, I'll get back to confirm if it worked when I find it. Cheers.
Although, if you never used to ma'habre book, let me know! That would just mean that I was completely wrong with the problem.