The DLC has erased my progress.

I get the Latest DLC from within the AC3 game and now:

I have 0$ money
I have to start over in the bunker and do the animus training (right now checking to se what is going on with settings, etc.)
The mission I am on is listed as Opera - Main missions are now at 0%
All side missions at 100%
My % Complete went from 85% to 45%
Per menu, I have to make all the courier deliveries again
I still have my stats, and all the side stuff is complete in the DNA, but the main missions are ALL INCOMPLETE. The game thinks I am starting over?
I still have amimus hacks, and I am in the cloud

Is Ubi trolling me? This is my first AC game, so I am not sure how to take this.

MY PROGRESS HAS BEEN ERASED BY THE DLC FOR WHICH I PRE-PAID (SEASON PASS)!