You don't have to /camp, you just need to put enough distance between the out-of-sync characters. If you zoom your minimap out to max and you put enough distance between the characters so they don't see each other on the minimap then move them back together they will be in sync again. I've been doing the dragons in Ogri'la lately due to an abundance of apexis shards and this usually happens to me while fighting the dragons at Bashirs Landing.

This same tactic works for corpses with the out-of-range message when you try and loot.


Not sure why it happens but obviously the client gets out of sync with the server somehow.