Quoted from Lizzardis:
There is some updates happening.
Specifically, this quote here:
"if you unlock a medal and do not get points for it... you still have the medal linked to your account and on the next score sync, your points should reflect that."
Basically....They are updating the medal system. Your medal (If you unlocked it) is attached to your account, but the points don't register. They will do in sue time :)