Title^

What's happening: Smelting with fully upgraded Jumbo Furnace turns 9 pieces of whatever is smelted into 576 pieces instead of just 9. (64 in all slots)

Preview:
https://github.com/Commoble/jumbo-furnace/assets/26634554/ca79e8df-6470-44b5-804e-850ae91c4158

Versions:
MC: 1.20.1
Forge: 47.1.3
Jumbo Furnace: 4.0.0.3

Note:
Major dupe. But maybe it's intended? But it doesn't feel like it.

EDIT: Having just 1 jumbo furnace in the upgrade slot smelts 1 item into 64.