Bravo Throttle Quadrant keeps losing autopilot profile assignments

HI Bravo Quadrant Throttles lose power on every aircraft on MSFS. This makes MSFS unworkable. With twin jets Runway full throttle fine for a moment then both Jet engines lose all power. Done everything I know (not obviously enought) Re’bined Control Panal axis - nothing - still losing power. No inputs doubled. Any ideas, out there? Appreciate if there’s a genius around to read this?