While playing in Minecraft I had traded with a piglin and received soul speed iron boots, immediately I equipped them but piglins started to attack me, but when I ran inside to change my boots to gold ones, the iron boots kept jumping back to their original space. The same thing happened when I equipped plain netherite boots, so this isn't just soul speed. My netherite boots were at full durability and they kept bouncing back to the boots slot while trying to put them in a chest.