About a month ago I started having tons of issues with mobile app check-in and having to go check-in with an agent at the airport. My US Passport has my Irish "Mc" last name but has a space after part of it and then under "given names" lists my first name and middle name.

I usually can check-in fine via the app for my first flight. Sometimes I can't and it says mismatch and it will be a middle name issue or the space in my last name.

However, if I ever have to check-in at the airport or print a boarding pass, my passenger information seems to UPDATE incorrectly and I can no longer check in for any subsequent flight segments due to the mismatch. For example, my info will be "First Middle Last" but second segment my info is "First Middle Middle Last" with my middle in both the first name field and middle name field or "First Middle La st" with a space.

The only thing I can think is when my passport scans it picks up these errors and updates my passenger info which then of course doesn't match my passport info. How can I fix this? It started happening a couple months ago and is extremely annoying as a frequent traveling exec plat.

I don't think my passport is incorrect, I think when they print a name with a "Mc" they just add a little bit of a space even though there is not a space in my name. I don't think my First Middle is incorrect - they just list both on the same line of "Given Names". I don't think I can update my AA profile or ticket or TSA b/c then they won't match my actual name and travel documents.

It is driving me insane and AA says there is nothing they can do, I just won't ever be able to check in online anymore. It worked just fine for years why the sudden issue?