When making an automatic cow cooker, cows cannot move to breed when standing on a trapdoor, either open or closed, even if the confinement area is 2 wide. Hearts appear but animals only stay in place. This also happens with sheep and pigs, Chickens, cats and wolves are not supported by trapdoors, but they will not move to breed or feed when standing within the trapdoor block, are fed and showing hearts, even if they are occupying the same block
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However, this issue has been closed as a Duplicate of MCPE-11727.
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