Reasons for SKProductsRequest returning 0 products?

Question

I\'m trying to set up IAP but after making a call to retrieve the products using SKProductsRequest the SKProductsResponse array within my delegate has a count of 0. Here\'s

Answer 1

I'm getting an empty SKProductsResponse.products array on some macOS 10.14 systems while others work just fine and return the valid list of current IAPs for my app.

Same app, identical code.
User logged into the same App Store account on both machines.

That's just plain weird.