I broke the stamper.

[Krap-E-Player]

I had full inventory slots while stamping weed, the stamper was full of other things so I dragged and dropped a 20 weed onto a stamper slot and a soil from my inventory wint into the stamper's output. Now the stamper can't be cleared of any of it's holdings and it won't stamp. It's totally stuck! When you are "in the stamper screen, all of the inventory UI elements are frozen, nothing works at all. Lol.