Have a friend trying to pick someone up and here is his problem.
I know what the problem is, the game thinks I'm not in the same location as him. I tried to arrest him by Faction-Arrest/Execute and it says that I'm not in the same location, but I am in the same location.
Coords removed for security.
And I can see in the scanner that he's in the same location.
For now I've told him to try moving over a square and try again. I have also told the pickup to move over a few squares as well.
A similar issue arose with someone else last night. The problem was that the arrester was on board a ship and the target was on the ground, outside of the ship. You must be in the same room to arrest someone; if this is the case for you as well, you will need to unboard your ship before it will allow you to arrest.