BrandsSync | Dropshipping

The app is well designed in integrating with Shopify.
The one and only bug I have encountered so far is that the app seems to be not aware of 100 variants limit per product. So when I enable the option to merge similar variants into one product (why not? it is easier for customers to navigate), some products stuck in product queue. These products are always the products with >100 variants (i.e. sneakers). I hope the developer can make a work around.