Feeding Dolhpins Crashes game and you cant reload the world

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What I expected to happen was...:
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What actually happened was...:
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Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... Summon or spawn a dolphin. Feed it raw cod. Or Fish. Cod is the only things I've noticed. Then The game will freeze and crash. Then you cant open the world again
3. ...