Bad interaction with Iron Furnaces, moving items into an invisible inventory.

[SSUPII]

Related issue and comment: Qelifern/IronFurnacesNeoForge#48 (comment)

Sorting items in your inventory while viewing a Iron Furnaces furnace will sort smeltable and burnable items into a separate, unused, inaccessible inventory.

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Video showing it occurring in AllTheMons 1.0.0 (Release Candidate 7):

2026-06-27.17-36-24.mp4

Video showing it occurring with only Iron Furnaces and Inventory Tweaks Refoxed mod on 1.20.1:

2026-06-27.17-49-31.mp4