When crafting potato pancakes, you need to make "plain mashed potatoes", which use a "cooking pot".

However, when use use create the "potato pancakes(uncooked)", your "cooking pot" is consumed. When eating the "potato pancakes", instead it returns a "frying pan".

This is a obviously a bug in where since "potato pancakes" require "frying pan" to create, the creator got confused somewhere in the midst of it. It should return the "cooking pot" on creating "potato pancakes", and should not return anything after eating.

Also "plain mashed potatoes (uncooked)" when cooked will not produce anything, and will basically delete your "cooking pot".