That's weird. Do you mean your second BGIP is over a month? If so, mine too. But it's really rare for applicant whose AOR is before mine not getting a PPR yet. You should really check it out.
Dude are you on MyImmiTracker? I saw three people including me with Dec 20 are waiting PPR. Many applicants whose AOR is before that day have got PPRs.
My AOR is Dec 20, 2016. Right now only medical test passed in Mar and still BGIP(2), no more extra doc needed. When will my PPR arrive? Already 177 days passed. Kinda lose patience.:(