It appears you have enabled a product-specific hop link for that product but left its product-specific share at 0%, which is overriding your Common Share % for all affiliate-referred sales of that product. To fix this, you can edit product-specific affiliate settings for that item and do one of the following:
- Enter a product-specific share % for that product, which would apply to all affiliate-referred sales of that product;
...OR...
- Disable the product-specific hop link -- in this case, the product-specific % would have no effect, and any previously-issued hop links for that product would continue functioning as Common hop links.