I have same issue. I thought perhaps something else was affecting it. With Conqueror/Sim3n1/addon packs, about 20 game play mods/clothing/hair beards etc/companions/workshop rearranged and another 20 build mods to add in... 176 plugins total... not counting what ESL's there were, but even with that, sitting at 213 mods installed...
Installed in steps... checked save.... closed. No problem. File size is definitely bloating and wondering if that is an issue.
Here is breakdown (rolling total - not per category):
Base game plus core mod game fixes / visuals / sound / valdicil's / etc 4.417mb
Add my gameplay stuff 5.059mb
Workshop Rearranged and building mods 7.273mb
Sim Setttlements 3-in-1 plus about all the add on packs 27.273mb (WHOA!)
Companions and custom settlements (Red Rocket / Evan's way, etc) 27.909mb
Up to this point, I could exit, save, save then to menu... exit to desktop … no problem. Normal game behaviour
Conqueror - settlements all except exclusion list. level 1 start. 30 to 70% population.
final size - 34.649mb
I have had other runs trying all top levels so I could see what I would get... I have sat at around 40mb...
I think the game doesn't know what to do with all that...
I have all my mods so I can play conqueror while along with the rest of the game. I am not playing conqueror only for the quest line.
So... this isn't the 1st night. I have spent all weekend frustrated and debugging this.
I have an idea though... does Conqueror need to write to an "External File" ? Can it? It should.
I can provide an example of a program that wasn't writing to an External File and causing CTD's and corrupt save files... they switched and have it in the main ini file (EDIT: the line for external file saving)...Animated Animation Framework (AAF) …
Just a thought. Otherwise, it is apparent this is what happens with Conqueror. Exit save is fine and not corrupted, but game does freeze when exiting game to desktop. Not to mention some crashes like John Lock's molerats. Mine would crash the moment the deathclaw in concord would crash through the hole cover and attack... I could go back to museum and do the scene again... deathclaw crashing out of the ground.. CTD. Jammer is in that area, btw. On the roof! Or in the playground at that point...
The roof. The roof. The roof is on fire. (where's uituit with a wall of blue flaming hell???
)
John