AeroPod, PowerPod and Newton

I have been using the profile number 3 along last August. The odometer displayed 30169 Km the 7th August(althougt the Newton only displays 4 figures, you can check it trough the Isaac). The odometer displayed 30918 Km the 24th august and then it started countdown, YES, countdown. Now it shows 30710 Km and I have been cheking the odometer on the bike to control that by myself. The rest of the Newton features work fine.

What is happening?

I usually bear in mind the odometer to plan the maintenance of my bike, in the same way as you do (or should do) with your car, that is why it is very important its acuraccy.

Any chance you reached 32767 km in August?
If so you might have a signed integer rollover to negative.

No, the figures are right as I posted them.
I am afraid that the odometer problems arise just when you pass by 9999 Km.
But let's see what Velocomp tell us about this.

I reset to zero the profile number 1 and number 3 odometers last tuesday.
After doing only 49Km with the profile number 1, now the profile number 1 odometer displays 302.9Km
I guess that something is wrong