Cloak and jumpdrive should not work in combination.
It's silly.
And the complete idea of "being invisible" on a server that has trouble making interaction between players happen is bad. All cloaks should be removed anyway, as they run contrary to literally everything that is needed in a multi-player game. (If you need evidence, ask yourself: would you log for anything that has a permacloak on the ID when you see them on the player list? Answer: No. They are most likely cloaked anyway.)