Products not listing?

I’m trying to list some products that are already listed on Amazon by fba sellers but the products aren’t appearing in my inventory, instead they appear in my inactive listings section and come up as a completely blank listing besides the price I put when attempting to list the product. The listing is requiring everything from the title to the dimensions of the product as if it’s not already listed on Amazon. This has randomly started occurring within the past few weeks. Is there a cause or a fix for this?