The problem only occurs in Minecraft for Windows_1.19.51.
Problem manifestation：
Trade Llama are not visible:
Trade Llama led by merchants cannot be displayed, including artificially generated.
Also, in the list of items in creative mode, Spawn egg of Trade Llama appears unexpectedly.
Thank you for your report!
We're tracking this issue in MCPE-156287, so this ticket is being resolved and linked as a duplicate.
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