When generating new land, peaceful mobs are spawning in the south west corner of a block causing them to suffocate if there is a block next to them. They should spawn in the middle of a block.
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Comments 6
Is this still an issue in the most recent versions (currently that is 1.10.2, or 16w42a) of Minecraft? If so, please update the affected versions and help us keeping this ticket updated from time to time.
It's already been posted (MC-92729)
Might be the cause of "horses suffocating on world gen".