I have had this problem frequently. I will load up a save that I have had for a while and when time starts moving forward it will freeze for a second before the "CK2 has stopped working" message and then CTD. Sometimes I will delete local content for the game from steam and then re install it and that has worked, but the same problem happens again. I am using all of the dlc except Rajas of india (I think) and the tribal Wales mod. Sorry this post is a poorly formatted mess, I just wanted to put it up before sleeping so I get a reply before I get back. If this is not an easily recognized issue and more info is needed I will provide it when I return tomorrow. Thanks for reading, here is what was in the error log file
[instanttextboxtype.cpp:92]: Not used, use maxWidth and maxHeight file: launcher/interface/main.gui line: 87
[instanttextboxtype.cpp:92]: Not used, use maxWidth and maxHeight file: launcher/interface/main.gui line: 104
[technology.cpp:718]: Missing Tech seed values:
[technology.cpp:755]: None.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties3.tga.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties4.tga.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties4_muslim.tga.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties4_indian.tga.
[texturehandler.cpp:181]: Couldn't find texture file: .
Ill post other system info if needed, but off the top I know I'm using Windows 7
[instanttextboxtype.cpp:92]: Not used, use maxWidth and maxHeight file: launcher/interface/main.gui line: 87
[instanttextboxtype.cpp:92]: Not used, use maxWidth and maxHeight file: launcher/interface/main.gui line: 104
[technology.cpp:718]: Missing Tech seed values:
[technology.cpp:755]: None.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties3.tga.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties4.tga.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties4_muslim.tga.
[texturehandler.cpp:181]: Couldn't find texture file: gfx//coats_of_arms//dynasties4_indian.tga.
[texturehandler.cpp:181]: Couldn't find texture file: .
Ill post other system info if needed, but off the top I know I'm using Windows 7