Hi Steeven,
I am seeing the same happening. On a laptop I barely used last month I only received 7 ads in total, the last one on the 24th. I had .040 BAT as earnings during the month but now it says 0.01 arriving in a few days and 0.030 carried over to next month. Going through the ad history I see 6 ads which were either NTP or inline ads, and only 1 pop-up (the last ad I received last month on the 24th).
It looks to me like only the single pop-up ad got reconciled and the NTP and inline ads, the last of which was on 22/02, got left out.
I am obviously not bothered by the ‘loss’ of 0.03 BAT but there are too many instances of users reporting smoke for there not to be a fire.