Update on the issue that AS system dropped First Name from Legal Name after site update -

Issues detailed in this post https://www.flyertalk.com/forum/36634358-post239.html

Called MP 1-800-654-5669 this morning. Hold time was 20min.

Rep saw the problem immediately and said she could fix it.

What she eventually did, by my guess, was to somehow make the existing account become a New Account but with the same account number. She told me she had to move some things around in order to fix the Legal Name mess.

The existing account User ID and Password all changed (she gave me new info on the phone). She said she did not think I could change the User ID but certainly can change the password online. Indeed, on website it said to change User ID you need to call Customer Care without phone number listed once you click that bubble - it leads to a Help Page. I dont have time to go thru that now. Yet the site recognizes the existing password, not at log in, but in the function to change password - I got an error when trying to change the password back to the old one, the site said could not use 5 previous passwords!

Meanwhile, I actually got an email to Welcome me joining MP... but with the existing account number. Dont know how that could happen.

As for the Profile of the account -
Under Personal Data, Legal Name is corrected back to the previous correct form. DOB and landline phone (number used at signing up MP decades ago) stay intact. Email address stays intact. Everything else is gone. Cell phone and address require entries.
KTN is gone. Passport info totally absent. Travel companion is gone.

Thankfully, the account activity, total balance, and an existing award booking remain intact.

The phone rep did say a number of weird things happened after the recent update when I asked her on this regard. Just HOW an update could mess up some members accounts but not universally affect everyone is an IT oddity. SIGH.