There's a problem with the new Netherite horse armor: it can be destroyed or burned by fire and lava. Normally, Netherite is immune to fire and lava and can even swim in lava, but this isn't the case with the Netherite horse armor, which can be burned and destroyed by fire and lava.
Environment
minecraft for java and bedrock preview
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We're tracking this issue in MC-303940, so this ticket is being resolved and linked as a duplicate.
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