I've been having some issues with anything involving Blackreach. I've added a few towers here and there in its worldspace, to serve as train stations, but apparently doing so causes the game to crash. Specifically, whenever I go and try to load the cell where the main city is placed, the game just minimizes, no errors, no notices, it just closes. After that, even removing any offending references causes the game to crash at that spot.
It's getting annoying and I've been unable to progress on my mod at all. Anyone know of a possible reason?

did you delete anything from that cell?
Dont. Set it to disabled instead.

That's the thing, I haven't deleted anything.
I did some more testing, and apparently even adding a new interior, not even the act of connecting it to Blackreach or even adding a corresponding station, causes a crash, still at the same spot.

Is this happening when you coc into it from the load screen?

If you are entering from say a save game, your save game could be what is causing it.

No, I enter it normally. Just up the steps to the city will cause the game to crash.
Doing some more testing, adding a new interior cell is fine, but the moment I go to add objects to it that cell becomes unstable.

Did some more testing. Removed small bits from that new interior cell, and now a DIFFERENT cell in Blackreach crashes.