mod version:compactmachines3-1.12.2-3.0.17-b267
Using the Extra Utilities 2 Mechianical User and the Not Enough Wands, Acceleration Wand, accelerates the Block in the Crafting area center, dropping more products.

and Extra Utilities 2 Interactionproxy

I wouldn't call this one a bug; more of an unintentional feature due to how the crafting process and preview work. (Haha, "not a bug it's a feature" here).

That said, this one is probably going to be difficult to fix due to the number of tick-accelerating mods in 1.12, and the knowledge of the ticking block in the center of the crafting field.

Relevant code block for item dropping: https://github.com/CompactMods/CompactMachines/blob/1.12.1/src/main/java/org/dave/compactmachines3/tile/TileEntityCraftingHologram.java#L61-L73

I feel like this issue is a wont-fix scenario. It shouldn't be OUR fault that crafting is being sped up by another mod. Either disable the feature in the mod or don't/do use it.

As a feature, maybe it can be a shortcut to play.

Not sure what you mean by this.

The real issue here isn't the crafting speed (that's a whatever as far as I'm concerned -- balance, maybe, but not broken). The issue here is more outputs dropping than what's been specified.

However, I'm agreeing with Shrimp and my original point; given the complexity, this is probably not going to be fixed before end of life for CM3.

What mod is causing the duplication in output drops, @UnaRem?

Extra Utilities 2 and Not Enough Wands

This is certainly not a very common option, as the Acceleration Wand from my modpacks has been modified to do away with RF.

Which items in particular are you using to duplicate outputs from those two mods?

The first comment explains how to create this bug