Glitch: A wizard should not lose a marked teleport position because the game needs to get updates. The marked position should be removed only once the wizard successfully arrives at the position.
Explanation: Say you mark a position far far away. A week later you come back to play the game. A bunch of game updates have happened, or maybe you switched computers. You try porting to your marked position and you get the message:
"The area isn't ready for you yet".... and a bunch of stuff starts loading.... and you just lost your marked position.