The textures of the llamas, horses, and peddling llamas are wrong as shown in the following image.
If you put horse armor on the horses, the llamas' textures reflect the horse armor.
If you put horse armor on the horse and then remove the horse armor, the llama, horse, and peddler llama textures will be normal.
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Thank you for your report!
We're tracking this issue in MCPE-160451, so this ticket is being resolved and linked as a duplicate.
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