The end gateway seems to think a mob is in it, while in the overworld, but none is there. It'q really frusttrating to build with, but it doesn't cause anything else than to spawn that purple beam.
It does also occur in multiplayer
MC-118806
End gateway purble beams spasming out
Resolved
Duplicate
0
andreas De bruyker
(Unassigned)
Unconfirmed
Minecraft 1.12
Retrieved
Thank you for your report!
However, this issue has been resolved as a Duplicate of MC-107824.
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