My LS and I found a bug in the teleport system in which if a previous teleport offer is made, a new one teleports you to the previous one's location.

Lemme give an example:
Someone in the party teleports to Ul'dah. The rest of the party declines the offer.
Someone else in the party teleports to Limsa. If you accept this teleport, sometimes you'll end up in Ul'dah.

So, a new teleport offer doesn't override the old one.