Placed an armadillo in a boat and it went disappeared a few minutes later. Nowhere to be found.

Went looking for armadillos with a friend. We found one in a Savanna next to a Savanna village. Got the armadillo to sit in a boat and walked away for a second while still in the same small area as the armadillo now in the boat. When we came back a few minutes later, it was nowhere in sight. We both saved and exited and came back but it still wasn't there. We destroyed the boat to see if it went invisible but still didn't reload and is still missing.