Llamas have never protected the wandering Trader in Bedrock version. If you hit the wandering Trader they do not do anything to you. If you hit a llama they will spit at you but they do not spit at you if you hit the wandering Trader this needs to be fixed. If a zombie hits a Wandering Trader the llamas do nothing.
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We're tracking this issue in MCPE-94996, so this ticket is being resolved and linked as a duplicate.
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