theBOONIES review for Shopify Marketplace Connect

I like using the Shopify Marketplace Connect app however when I have variants in 1 product listing, the Marketplace Connect app combines the quantities for each variant instead of separately in my Amazon and Walmart store. Ex. Shopify Store- Shirt 1 Small 2 Medium 0 Large 2 XLarge but my Amazon/Walmart store will show a combined total of 5 instead of their respective quantity amount like below 5 Small 5 Medium 5 Large 5 XLarge So then a customer will buy a Large even though my inventory is 0. This needs to be resolved immediately.