I've found killing yourself (no, I'm serious, blow yourself up with a mini nuke or something) after loading fixes it for some reason. Load your game, die somehow, and after the auto reload you should be fine.
Hmmmm, mods with changes to the respawning codes? Sounds all too familiar Grafffffffffik.
Yes I know my earlier ones i created do because I was using only fallout vanilla in modding them
newest ones don't because I am not editing same areas yet that can cause crashes. It is extremely difficult to tell where it does however I do know crashes (IN respawning ones) do occur in 1 of 2 following sections: 1) changing "encounter zones" settings to reset or not OR 2) Physical alterations of the random encounters
Either case my current mods not affecting those. I do know MMM still does as well as OOO But G.E.C.K. absolutly never reports fatal or conflict errors to you so finding these things are trial and error, and you can only "SURMISE" the possible error locations