Ender Dragon Frozen, will not move, totally non interactive. Have tried to respawn but new enderdragon totally un interactive. Have tried to spawn in above world now another enderdragon frozen to the spot totally un interative.

This has happened since 1.9 update. Children would like elytra but can't kill enderdragon.

Have tried many elaborate ways to kill un interative enderdragon without success. Have posted message earlier this afternoon, apparently did something wrong and was resolved with out explanation on resolution or what to do.

I am just a hen pecked mum not a computer programmer please explain.

Thank you