Look at the SPR attached,the issue occured at the time between 0:21.46 and 0:21.93,when dynamical camber was over 72.14 degree.The tyre losts grip obviously.It often happens when I'm doing the side wheelie,which will break the balance and made the car out of control.So maybe it's a unavoidable issue in simulators? Can I expect a fixing in the new version of tyre physics which is under development?