Forum:5040 War Assets + 100% GR = NO SYNTHESIS. HELP!

Would somebody PLEASE EXPLAIN THIS.

I've been playing ME3, and I achieved 5040 by the time we hit Cerberus. After that, I made SURE I had 100%, as even 99% drops me below 5000. I then attacked Earth, saving and checking each time, and jumping a Multiplayer game to make SURE it stayed at 100. I then finished the game, and only got TWO CHOICES.

Explain... HELP!