I'm sure I can't be the only person experiencing this...

If I try and check-in online right at the 24hr mark, I get 'locked out' of the system with a 'cannot find ETicket' error for at least 30-60 seconds. It seems like I need to wait for a magic moment about 15-25 seconds after the clock hits '24' before attempting a check-in to avoid this problem, but the time seems to vary.

I just tried online check-in a few moments after the clock hit the 24hr mark and I was locked out for almost a full minute before I could complete the process and ended up #4 on the list for a flight which might only see 1 or 2 FC seats open up at departure time.

Is there a back-end process which is running through all the records and marking them 'ok' for check-in as each flight reaches the 24 point?