My most recent late hit the 12 month mark. Some inquiries did too. I was SO sure that I'd see my score scoonch up a few points (am in mortgage hell waiting for midpoint to go up 3 points). It did not budge. Oh the pain...is it likely it will rise in a few days? Or if I were going to get a boost, should it have happened today? I thought it would on the first(I have CCT at the moment so know it is today's score). 
I'd agree with the timing issue point of view. I've seen variations in weeks waiting for proper updates. Don't sweat it. You'll see that bump soon.
