Forge 14.23.5.2847
Minecraft 1.12.2
Storage Drawers StorageDrawers-1.12.2-5.4.0.jar

When trying to compact Immersive Engineering's copper (a mod staged behind a stage), compacting bugs out as you can see in the gif below

Imgur

For reference, gold, which is not staged, works normally. Other mods which craft need to have staged containers per the way SevTech did it, but I see no reference to containers of storage drawers in their scripts, and the closest thing to a container I can find for storage drawers is com.jaquadro.minecraft.storagedrawers but that doesn't seem to work.

That is interesting behavior. But I don't understand what you mean behind "staged".

Using the game stage mods (Recipe Stages & Item Stages) it's possible to gate items and their recipes behind stages. This is the central component of a pack like SevTech (which the mods were made for). For blocks/machines that have some kind of crafting behavior (Applied Energistics, RFTools Crafters, Cyclic Crafters, IE Assemblers, etc), they used containers, which Jarred, dev of Crafttweaker kind of hackily implemented (his words), but either I'm using the wrong container for storage drawers, or it's an unrelated bug that I'm not identifying.

For the time being, I've just made exceptions for the ingots and blocks out of the mods that I want compacting to work for, but an easier option would be if the entire mod's container could be used the same way as the above listed mods. If you need an example, look at the containers.zs script in the sevtech modpack