Shopify Variant Inventory Issue

I'm having an issue where my variants don't show as being sold out when they actually are. This is only occurring when there's more than one type of variant associated with a product. The buy button is acting fine, switching to disabled upon reaching zero inventory, but the variants are a different story. Looking for someone to assist in fixing the issue [login to view URL] you can do it so bid on project other wise leave it budget $25