I even got an email (after five minutes) stating that the change was successful! How many times do I have to keep trying to change it (before I lose my mind)?…
Hello @asfhgwt22
Thank you for reaching out in our Community.
I understand you have updated your master password, but the new password doesn't work. Based on your account records, no changes have been made to the master password, for that reason your "old master password" keeps working.
You can follow the steps on this article to know to change your master password.