Example: All ingots convert to copper ingots because the copper ingots are preferrred in both forge:ingots/silver and forge:ingots

to reproduce:

hold thermal expansion ingot, type /odc add
pickup ingot

when typing "/odc remove forge:ingot" while holding the ingot the issue resolves and the ingots do not convert outside of what I had intended.

"/odc add" makes the held item preferred for every tag that it has

Actually still an issue, but not with ingots. With mods that adds metal dusts, gears, etc, the mod adds all the tags on the held item to the list. I have a few suggestions:

1. ignore more common base tags (e.g. forge:dusts, forge:gears, forge:coins, forge:plates, etc.)
2. Allow the "/odc add" command to pass arguments of a certain tag like "/odc add forge:dusts/iron"
   i.e.
   -if no argument is passed, adds all tags to conversion
   -if an argument is passed, only add the specified tag to conversion

did not read the closed issued :(((((