okay, so I took so some benadryl, and took things slowly, using the modification manager through each save. and came to a conclusion, it was something in the world map section...
the section "common data", I had edited the world map/Places texts, probably had too long of a text, resulting in a oversized .hws and resources.assets.
I had this problem a long time ago, forgot how I fixed it, now I see how. I never touched, World Map/Places texts, cause it always corrupts something!
Thanks as always, Tirlititi!