Why is my product not being hidden?

Is your product not being hidden despite all of the variants being out-of-stock?
Products may contain more than one variant. In some cases, one or some of the variants may be out-of-stock and the others may still have stock that has a value of >= 1. 

ZeroOut hides products only if the inventory for ALL the variants is out-of-stock. If in any case, one or more variants still have stock(s) that is/are ≤1, the product will not be hidden in the store.

In cases where the inventory for ALL the variants is out-of-stock(like shown in the image above), products should be hidden in the store.