Breeding llamas with trader llamas never result in a baby trader llama

Ever since trader llamas could breed with normal llamas, the babies they produce always end up to be a normal llama, it could end up with either one of its parents colours, but it would not be a trader llama.

Reproduce

• Tame a Llama & Trader Llama
• Breed the two
• Repeat a few times
  A baby Llama will be always be born and not a trader llama