Never mind, I found the problem. It's the Echo's of Ages mod. I ran the testing three times, the games freezes with the mod active, doesn't freeze without it. Which is a shame, because I LOVE that mod.
Somewhere below version 43 of that mod, it worked just fine, but after that version it freezes up on me including the newest, version 45.
Thanks for confirming It's always hard to know if you've completely fixed something when your the only one who's tested.