Hi, I’ve encountered this issue at ZRH yesterday and added to my bug report about GRU and MCT. I’ve only realised that this issue at ZRH has already been reported. Nonetheless I went into detail about how the bug works at GRU (which works the same way as ZRH) and you can have a read about my hypothesis if it helps clear up the confusion: STOL planes breaking runways for departures at GRU, MCT & ZRH