0% Cashback for Uncategorized category

Hello,

Thank you for such a great plugin. I am using WCFM Marketplace plugin and have set up a membership for the vendors. I would like to set up so that when vendors are subscribing to the Membership plan, they don’t get the 2% cashback that I had setup based on Category. I have set the Subscription product and it is in Uncategorized category and I have set the cashback to 0% for Uncategorized category but it is still giving 2% cashback. Please advise.

Thank you.