Yes, same here. I was going to ask the same question. My flight on Monday has not posted, nor has my Wednesday flight (as expected I guess).
Also, I flew RT from BOS-PHL-VCE (Venice Italy) about a month ago. The BOS-PHL, PHL-BOS segments never posted. I'm having to now go through the missing mileage process. At least the PHL-VCE posted but there seems to be some issues with the combining of the programs.
When I called US to get the BOS-PHL mileage, they said they can't see that information any longer and I had to deal with AA. Maybe some glitch between the US and AA systems?