I don't mean to stir the pot, but if you've interviewed early then at this point they have most likely already made either an acceptance or continue decision on your application. It's just that they're not allowed to announce acceptances until 10/15.
I do remember seeing something about a similar glitch in another school's thread last year (the school was also using the AMP system) - waitlist decisions came out on the portals for two people way before anyone was expecting to hear and it just showed up with no email or notification or anything. Obviously hope that it was just a mistake, but if you don't hear anything on Oct. 16th, then at least you know that you've been continued as opposed to outright rejected and will hear back definitively later on in the cycle (along with the what is likely the majority of us who also interviewed in August/September).