OK, it happened many times to my junior team, which I am running in live timing mode. My drivers make the regular first stop, then stop the next lap and again, will continue to stop with their regular stops. Problem is with that one lap stop. Why is this happening ? At first I thought it was due to rain, on rainy races, but on last race, it was dry, they didn't need to stop !
http://igpmanager.com/play/?url=race-result/48517/6694
And oh, look, they messed the stop order too. On 2nd stop, they should have taken 27 liters, not 32.