Did you call the program or admissions? The program reviews and the. sends out their "reccomended for acceptance" letters and then admissions makes the final call and then those decisions go out.
The email didnt go out to everyone. I was emailed about a rec letter that they thought they hadn't received but was really there and the guy said they were beginning reviews for invitations this week, so they needed it ASAP.
I'm assuming they prefer to review closer to interviews so its fresh. It was the same case for another school I applied to during my last grad program.
I received an email Thursday that they were beginning to review applications for interview invites this week. So it is going to be a really short turn around from invites to interviews.