Iron Golems are able to spawn on air blocks, meaning that they are created mid-air without needing any solid blocks directly under them. In 1.12 and below, golem spawning required a solid, opaque block to be valid, just like almost all other mobs in the game.
As proof of this bug, I removed the spawn pads on a 96 village Iron Casster iron farm (I used this large-scale farm so many golems spawned in quick succession) so that the golem spawn area was completely air, with no solid blocks. As seen in the video I have attached, the golems spawned mid-air, before falling into the collection area!
I have heard of this issue before, but when I searched around I could not find a bug report on it, so I decided to make one myself.
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duplicates 1
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Oops, I couldn't find that original report MC-134889 when I searched this bug up before making my own report! I've attached the video to that one. Thanks for pointing it out!
Also I don't know how to delete this one...
Thank you for your report!
However, this issue is a Duplicate of MC-134889.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
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