Armor Duplicates when you kill yourself with instant dmg II arrows

I'm using a fully enchanted Bow and using instant damage II arrows. I'm also equipped with fully enchanted netherite armor except for the chestplate because I'm using an Elytra. So while i was killing Shulkers with my bow in the End Dimension, i accidentally shot one which is closed (the shell) and so the arrow (instant dmg II) ricochet back at me and died. I came back to the location to see the armor I wore multiplied on the floor ( see the image ). I'm not really sure what caused this but this is an OP bug. Hope you guys fix this.