I had my name reversed on my hkg-icn-hkg ticket earlier this year and didn't realize until I tried OLCI. Didn't really have a problem with the exception that my oneworld status didn't appear on the ticket. I had to show my AA plat card to go into the lounges even though I had put in my AA FF number in the reservation. When checking in I just let them know that the names are reversed as they couldn't find my ticket when searching by name.