As in the title - I'm playing side by side with my kid and he was just putting his horse, nametagged "gerald", in a pen. He turned back and the horse was gone, along with its armor. We logged off.    There've been things disappearing in 1.14.4 – a pig named "ryszard", an anvil, parts of a fence where my son kept his sheep, villages from at least one village (without any raid).