@ambanmba sorry for the delay in responding... that is pretty strange! I don't really have a clear understanding of what could be going on. It sounds like a software issue, but you're the first person to have reported it as an issue. I wonder if it's related to the meter calibration somehow.
Let me check my understanding here, the time sequence you're seeing is:
1:55 -> 1:00 -> 1:01 -> 1:02 -> 1:03 -> 2:00 -> 2:01 -> 2:02 -> ...
2:55 -> 2:00 -> 2:01 -> 2:02 -> 2:03 -> 3:00 -> 3:01 -> 3:02 -> ...
and so forth... Is that right?