The exact same thing happens to me, and I have not downloaded anything from the marketplace
It happens to me exactly the same
1.16 pre 8 (piglins and hoglins)
Are you sure you are not in peaceful mode?
this is not a mistake, it can happen that it is released from its flames while it is close and when it leaves it it leaves behind
the same thing happened to me, I played for several weeks without seeing any goats in the mountains, and from one day to the next the goats came back, I didn't update the game or anything, they just came back and that's all.