I made a bridge over a small river, and after making a barn I figured I needed animals and went on the search. I found a cow on the opposite side of the bridge from my barn and I tried to get it to go over the bridge and it decided to pathfind to the river under the bridge. I had to push the cow over the bridge which I had no issues with. The cow could not go up or down on half slabs.
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Thank you for your report!
However, this issue is a Duplicate of MC-134847.
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