On Wednesday, I did some review, and even though the points were accrued, it didn’t register on my learning graph. So I lost my overall streak, which was at 51. The points registered the next day. The same thing just happened again today (by which I mean Friday; it’s currently a bit past midnight on Saturday). The points were accrued, but didn’t register until today (Saturday).
The first case might have been caused by me not doing any learning until it was late at night. But today, I did some learning at a normal time of day, in the afternoon. There’s no reason it shouldn’t have updated until now; previously, it would register right away. Plus, given that the points register for the next day as soon as I cross midnight in my own time zone, I think it’s just a glitch.