Problem With Duplicate ASINS Being Generated

So in the past I’ve been able to add new products with variations without any issue. I have GTIN exemption, so new FNSKUs and ASINS get generated. This new product I’m adding had two styles and two sizes, so 4 unique variations with unique SKUs and ASINSs. However, even though there are 4 unique variation attributes and SKUs generated, only 2 ASINs get generated. The same ASIN is being generated for different SKUs that have different variation attributes. This has never happened before and I can’t find a work around. Seller support has been unhelpful. Has anyone experienced this and how did you fix it? Any help would be greatly appreciated. Thanks!