Bred 2 cows. "Breed them all" advancement increased to "1/14". Bred two llamas. "Bred them all" advancement did not increase and stayed at "1/14". The llamas were gotten by killing the Wandering Trader, leading llamas to an enclosed area using a leash, moving far away to make them stop being aggressive, then taming them by riding them. Breeding was done by feeding both of them with Hay Bale. The breeding itself was successful (a third tiny llama appeared).