I finally got some payment confirmations from Bitmain this evening for the two batches that sold earlier today. Definitely took longer than normal.
I got my payment confirmation in 25 minutes yesterday, paid from one wallet.
And my January 21-31 batch was already shipped couple days ago...
I've already received my 1/21-31 units, and every other bitmain order I've made, going back to early 2016, was confirmed quickly as you described (except for one, which was my fault due to fractional underpayment because of fee deduction --- definitely not a problem this time).