When there is no GPS signal, it may happen that some km are not charged immediately, but when the signal is restored, the km not previously recorded are attributed to the first available day.
Day 1: traveled 10 km >> but only 5 are counted by the RebelBot due to no GPS signal
Day 2: no km are covered >> but 5 will be counted that had been covered the previous day, as the GPS signal has been restored
So 5km + 5km = 10km covered on day 1
In the BeRebel app you will also be able to see a summary of the km counted on the various days "spread" as in the example above.