First Off. I am not a computer whiz and cannot advise everyone on AADSTS50196. I posted a solution that worked for me and which was based upon my thinking that if the M't system was presented with conflicting data, it will reject both because computer systems cannot determine which is true and which is not true.
I had hoped that my success would provide some insight to others, particularly those who seem to have a chronic problem.
I have done everything that I can do other than spending years understanding computers, software, apps, etc.