I think there was some QRB missing, I know I suddenly got 644k from them, so something is certainly up (sad thing is, if I got the credit when I should have, I'd have reached to 1.5 mil mark for the month of April) That does make me wonder, what should we do about requesting bucks in regards to glitches/corrections like this? wait a few days to make sure that everything has been updated properly? If so what's a good amount of time to wait?

Whoow... That was a Big update, great way to start the month !!  
It was a very odd problem, randomly missing credit for P9412 WUs and I'm glad that the issue is resolved now.