I was playing survival with a friend, when he unfortunately was killed by a piglin. It picked up his stacks of gold nuggets, his shield (which was put in the piglin's inventory, he didn't hold it) and his diamond leggings and boots were picked up and worn. We tried to give it some gold armour to trade, but it wouldn't aknowledge it. It would still barter as usual. A video showing what happened - https://www.youtube.com/watch?v=hkMeZoeOa8M&feature=youtu.be (this is just what happened to [I assume] cause this, if you want a video of the bug in action I can provide that.) We ended up killing the piglin to get the stuff back, which all dropped properly. The piglin was named, if that matters.

Edit: added screenshot for the request of the mod. Please note the piglin shown is not the original piglin, as we killed the original.