ElementalCraft 1.16.5 -2.7.13
Forge 36.2.8

Describe the bug
Undergarden mod adds its own iron, gold etc ore
Ore purification using common ores produce Undergarden pure ore chunks by default instead of common ones

To Reproduce
Steps to reproduce the behavior:
With Undergarden https://www.curseforge.com/minecraft/mc-mods/the-undergarden mod installed, put iron ore into ore purifier
Got undergarden pure iron ore

Expected behavior
Expect to get pure iron ore chunk

ModPack
No modpack

They do smelt and are processed normally by another mods like Mekanism,
but its better if output for vanilla ore would be vanilla ore chunk :)

does these ore smelt to iron, gold etc.? Ores that are smelt to the same ingot are grouped , the problem seems to be that they are grouped to the wrong ore.

This is a minor inconvenience and is no longer present in 1.17 onward. So I'm closing this issue.