Thanks for the reply.
Unfortunately for me, I am unable to uninstall the update that causes the problem. It appears in the update history, but no way to remove it.
Besides, it appears to also affect the 777, but much more abruptly as I cannot even load the aircraft, FSX crashes before the aircraft appears in the sim.
Will PMDG consider a solution if ever Microsoft was not to change anything on it's side?
Thanks.