Same here. The PFD, ND, and ECAM were frozen but the aircraft still flying. All the flight control input from my joystick and keyboard had no respone. However, I could swith my camera view and the sim was stilling running. I need to escape the filght in the sim and every thing lost. It usually happened if I had swithed the sim into compression mode for 4x speed.
I hope inibuild could fix this problem as soon as possible. This made the A350 nearly not usable as the filght was always incomplete.