Originally Posted by
sethb
If you're within 24 hours of your second segment, can you check in for that (getting 2nd, 3rd, and 4th) and then check in for the first?
Usually you would be able to check in for 2-3-4 but not 1. When you go back and try to check in for 1, it doesn't care that you're already checked in for 2-3-4, and still errors.