Odd problem with 4 input slot custom forge, I am completely lost

[Noisy Pants]

https://drive.google.com/file/d/1P66uIX2X3l60MAoK56N1LnGAKAW5nxj6/view?usp=drive_link

Download link above for the Blast Furnace mod.

 

I made a custom forge with four boxes to put raw material into yet it doesn't work completely. It has some odd issue that happens when I put iron in to smelt. Instantly the custom forge will have a full stack of thirty thousand in the materials window yet when I pull the stack out the amount of available smelted iron drops instantly to zero. The only other thing I've noticed is that the fourth socket is treated as a output option rather a box for raw materials to be smelted in. I've put two days of effort into this and I've hit a wall because I don't know what's going on. What .xml do I edit to change slot 4 into a input rather than an output?

[RevenantWit]

The forge cannot be expanded past 3 input slots through xml alone, it would require some C# modding.

[Noisy Pants]

On 8/17/2023 at 3:50 PM, RevenantWit said:

The forge cannot be expanded past 3 input slots through xml alone, it would require some C# modding.

Good to know, much appreciated