I chased this scenario before on the SD. A brand new aftermarket switch would not work and an old OE switch will work.

This was procured from a decent supplier, however no discussions with the supplier could get the problem resolved back to the manufacturer. The switch was not defective from a manufacturing standpoint. Their logic for continuity across various pins was erroneous and I'm positive that every switch they made would not function.

Sad sign of the times..............