If I try to create a new game in the Sims 3, after I select the household I wish to play with and click on the purple check mark the game stays in edit town mode and refuses to load the family.
Not awesome mod related, I didn't install it at all, and it happened to me once just after saving
Every time I tried playing with AM, it would easily get through both loading screens but then freeze at the end of the second loading screen, and wouldn't get past that. I let it sit there for a good 20 minutes then gave up. Tried again without any other mods other than AM, but the same problem occurred. I tried with all my mods other than AM and it loaded fine.
Maybe not awesome mod related, it happened to me twice, but the first time I just loaded an older save, for the second I tried without my game mods and it loaded just fine... (got 5 mods that I'm not sure of ambitions compatibility but didn't see issues other than that) ...