I couldn't replicate it either
Well, I started again, didn't press any buttons to avoid crashes and voila, it didn't crash.
However there are a few places where I got stuck and I also found some other errors.
1. layer
2. 3. 4. walk through walls (climbed up the wall in the slum)
5. layer
6. layer
7. layer
8. Can't leave the house but can walk through the wall
9. Can enter the house from that position
10. layer
11. Can walk through the "bridge"
12. entered the house near to the well in the "rich area", can't do anything
13. layer
14. layer
15. layer
16. layer
17. Shouldn't be able to walk there + 18. can walk through walls from there on
19. again, walking through walls
20. layer