After SU12, my CH Pro Brakes are not working correctly. I have re-calibrated them to no avail. Help anyone.

Yes you need to go into the PMDG Control Center which should be on your desktop and check for updates. You must have MSFS closed in order to update PMDG aircraft. There was an update immediately after SU12 was delivered last Tuesday. It specifically addresses braking for PMDG AIRCRAFT.