Hello,
From your configuration,
- First point : like Jerome told you
You do not need to put all filters in the same time ; just activate what is really needed, like : the filter on the products.
The rest (category, access level) is useless and can, on the contrary, generate an error and make that discount non working.
And so, this is not a good configuration for your filter :
You define a categorie WHERE there is no products AND you set "Including sub categories" to no.
This a good configuration :
As result :
Regards,