Forge version: 14.23.5.2854
Twilight Forest version: 3.11.1021
Link to crash log: NA
Steps to reproduce:

1. Place Input item into Uncrafting Table
2. Create an item, or block, with the uncrafted recipe
3. Shift right-click the final item to keep both the final product and input item
   3a) Add additional material in the crafting menu to receive twice the items. [(n-1) *2]

What I expected to happen:

I expected just to receive the final item without keeping the input items.

What happened instead:

As stated above and demonstrated in the video below.

Demonstration Video

should be fixed in the newest 1.16 beta. If not, please reopen