A error of sc2::ClientEvents::OnUnitCreated() .

I hope use sc2::ClientEvents::OnUnitCreated() to record the number of units and the GameLoop when the units was created in a replay, but there was an error in recording the number of workers(probe, drone and SCV), with more recorded results than actual results. On December 28, 2018, this error disappeared, my program ended up recording the same results as in the replay, I thought it was fixed, but now it appears again. Does anyone else have the same problem as me?How did you solve it?