If you teleport all entities to yourself in the End (/tp @e), the End Crystals become glitched.
The crystals are still visually shown on the obsidian pillars, but you can no longer explode or hit them normally. At the new teleport location, the crystals themselves are invisible and only the fire effect is visible. They can only be exploded there using arrows.
When the teleported crystals are destroyed, all End Crystals on the obsidian pillars get destroyed at the same time.
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