Cloth simulation stretch if character move in sequencer

Hi guys I have an issue and I don’t know how to fix that. In sequencer I have a character with a runcycle for exemple. I use the transforme tool to make it move from point A to point B. The problem is that when I simulate the cloth is very stretch and looks very bad but If the charcter don’t move then the simulation works very well. I don’t understand. As soon I use the transforme tool then the cloth looks weird. Do you know what could be the problem here ?