Happy to be proven wrong by anyone who has used one successfully, but my attempts have all failed. I have included a set of simple screenshots below for the four states of input for both a NAND and an AND operator. The expectation is that they are reversed, however this is not the case. Under all four input conditions, the NAND chip returns zero output (the NOT chip is illuminated). The obvious case where NAND=1 should be Input=0/0:
Link to all four test cases: https://imgur.com/a/WTXD9Qf
When asking in Discord, it seemed that the expectation was that they work, and that people are using them. I would appreciate if someone could explain the above.