I've been experiencing random CTDs for a couple of weeks now, which generally seemed to be confined to when loading into a new area and taking the first step or two forwards. These were pretty few and far between, maybe once every 2 or 3 play sessions, but the last couple of days they've been happening repeatedly in one particular area, meaning I now can't advance in the game.
My load order:
Not sure if it helps, but my character's situation is currently (minor Far Harbor spoilers ahead!)
I've tried uninstalling a number of mods, including all of those that were installed at the time that the crashes started right up to the most recent, with no joy. For a while now I've had a warning message pop up on loading a save, saying that there is a conflict between Unlimited Companion Framework and another mod, but this used to appear even when the game was stable. I've narrowed this down to a Vertibird overhaul mod which I've now uninstalled. This solves the warning message, but the CTDs persist.
Let me know if you need any more information, and thanks in advance for any help you can give!