zorzak posted this and helped many solved difficult save file. You can also try using DX9 or revert more turns.
If i have crash, i'm loading a SINGLE PLAYER save file (which is no mod/scenario* save file and it's from my installed Civ5) to "tell" Civ5-program to (something like) "activate" this KIND of save files to work on started game. When i do this, Civ5 "works" on THAT kind of save files and THEN i can load a multiplayer save file (which is no mod/scenario) with succes. I do not know if it's 100% works, but from 1 month+ it WORKS for me ALWAYS.*for now, i do not have installed any mods/scenarion and for now i am not going to play any mod/scenarion until Civ5-support make a workable patch to save files.
If i have crash, i'm loading a SINGLE PLAYER save file (which is no mod/scenario* save file and it's from my installed Civ5) to "tell" Civ5-program to (something like) "activate" this KIND of save files to work on started game. When i do this, Civ5 "works" on THAT kind of save files and THEN i can load a multiplayer save file (which is no mod/scenario) with succes. I do not know if it's 100% works, but from 1 month+ it WORKS for me ALWAYS.*for now, i do not have installed any mods/scenarion and for now i am not going to play any mod/scenarion until Civ5-support make a workable patch to save files.