I have a Turnigy in line with a watts up meter. When the current drops below an indicated .101 on the turnigy and a .10 on the watts up, the turnigy just stops recording or indicating anything based on amps. Amps indicated drop to .000, watt hours and amp hours stop accumulating. The watts up continues smoothly at .10 on down.
Looks to be intentionally programmed behavior?
Jim