It can take up to 48 hours for a download to register and appear in your earnings. That's one kind of delay.
Sometimes you will see a file sold on the map, but nothing on the income. Sometimes you will see money on your account and nothing on the map.
If anyone is tracking locations or time of DL by the time it shows up, keep these facts in mind. We don't know... It's not like IS where the DL or money might show up two days later, but the exact time is listed. SS we just get a credit and the date it's recorded.
Reporting of sales can be and usually is delayed. There is so much data that needs to be processed, that instantaneous reporting is just not possible.
In general I would say that a day's sales are not final until 24 hours later in Earnings Summary (which really is the most reliable tool). Graphs and such can take much longer.
So don't look at today's earnings, look at yesterday's earnings.