Upper blocks of double plants are generating on air above a pond (they are then disappearing few minutes after the player spawns in the world).
Seed : -837072862677963929
MC-116374
Wrong generation of "double plants"
Resolved
Duplicate
1
Lilloote
(Unassigned)
Unconfirmed
Minecraft 17w16a
Retrieved
This bug is pretty old, i think to is resolved as a duplicate, respectively somebody was already reported a bug!