Ender Dragon despawned while fighting him

[Granaz]

Hello Staff Team,

my problem: I did the "Ritual of Draconic Resurrection" and after the Ritual was done and the Resurrected Dragon spawned, the Dragon despawned while I was trying to kill him. I don't know why it despawned 
(1 Possibilty: Endermans kept despawning while fighting the Dragon, maybe too much entities on the server?). After this I did the Ritual again and the second Dragon despawned minutes after it too. 

It would be nice If I could get a refund of the used Items. [2x Resurrection Stone (ID:1647:1) ; 8x Charged Draconium Block (ID:1647:2) ; 8x Diamond Block (ID:57)]

Sincerely Granaz

 

[quagma]

Items refunded, topic closed.