Drowned dropping gold ingots instead of copper ingots (caused by incompatible data pack)

I am unable to reproduce this issue in 21w20a. Upon killing a few drowned zombies, one of them dropped a copper ingot and not a gold one.

That's strange. I had tested a backup copy of my 1.16 world, does this apply to worlds previous created in 1.16? I did optimise the world and tested again and I was still getting gold ingots.

i created a world in 1.16.5, updated it to 21w20a and i am getting copper ingots.

Do you have any datapacks enabled that might be affecting drowned's loot tables?

Cannot reproduce.

Note that if you use any data packs that modify loot tables, for example the vanilla tweaks "More Mob Heads" data pack, you'll need to use the version of that data pack specifically for 1.17.