Long story short, whenever I try to load my mod in the CS, it crashes. It's always at the same spot, too:

Cell " (13, 21)  Loading Files 82% (TR_Map1.esm)

The mod is dependant on both expansions, plus tamriel rebuilt (both maps).

I've gotten around it by loading just the masters, then loading my mod, but what the heck is causing it? There's no edits to cell (13, 21), I checked in the enchanted editor.

I had a problem like this before, so this might help...

When you select your mod as the Active mod, do you also select the ESMs it needs, or do you just let the CS do it for you?
Because the CS will only auto-select three (I think it was 3) ESMs and not any others it might need. Which can cause a crash.

So make sure you select all the ESMs yourself.

Oh, that would explain it. Thanks!