piglins don't trade whit anything intem of gold except gold ingots regardless of whether the gold item was drop or right-clicked, even with gold nuggets they just shake their heads down but don't pick them up, plus they disappear without the piglins exchanging anything
HOW TO REPRODUCE
1.go to the nether
2.find a piglin
3.drop or right click anything gold item except gold ingots
4.the piglin don't trade