Item listed as active, but not visible on Amazon.

I listed my first product 8 hours ago, and it says it is active. The product is already being sold on Amazon, and I assumed I would show up in the Other Sellers box when viewing that product page, but there is no “Other Sellers” link available. All I see is the option to buy the main Amazon Prime item. Is there a reason why I would not show up when there aren’t any (obvious) errors in the product settings? I am FBM.