As in MC-68227, the summoned EnderCrystals disapear after amount of time. Technically (tested with 'say', 'testfor' and 'entitydata') they're on their place and after restart they're visible again.
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MC-86566
EnderCrystals disapear
Resolved
Duplicate
0
migrated
(Unassigned)
Unconfirmed
Minecraft 1.8.8, Minecraft 15w33b, Minecraft 15w33c
Retrieved