So I just started to play on a new world to test out the new snapshot and see whats happening and when I killed some skeletons, I got their bones and tamed a nearby wolf. Doing this caused the "Best Friends Forever" advancement but I saw that there was another i guess "rare" advancement too. It was The "A Complete Catalogue" advancement. Thanks in advance (no pun intended).
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However, this issue is a Duplicate of MC-138541.
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The same thing happened to me after taming a llamaΒ