Oh how strange! I haven't experienced it myself though I know that's not always going to help. I'm going to try and ask a couple of other people to check it out and see if it's repeatable. Can you try and do some testing to narrow down where it could be sourcing from? When you say above the loading yard, do you mean the museum and farm layer? Like I said, I'll check in with some others to see if it's a common problem :-)

The new section of the map below with the long bridge is amazing, speechless overall. Couple of things when I'm on this map, starting with v clip (flying around). 01 travelling inside the map is fine, especially the last floor level, but when I visit the 1st floor above where the loading yard is, the game crashes. 02nd when I travel outside the map to visit above and below or even look at all floor levels, the game crashes. That's what I've experienced so far, but still find this map amazing