Let’s start over and try it very simple for a test.
1. Remove all the entered keywords from the Blank List and White List. You also want to remove everything in the global setting (Dashboard -> Amazon Auto Links -> Settings -> General -> Global Product Filters) and the unit default settings (Dashboard -> Amazon Auto Links -> Settings -> Default -> Product Filter).
2. Confirm that your unit shows products normally.
3. Pick and copy one word from the title of one of the displayed products. (Forget about your own keywords for now)
4. Enter the copied word in the White List -> Title field of your unit.
5. Enter * in the Black List -> Title field.
Let me know if you can see your picked product for this test. If yes, change the word you entered to your actual desired keyword. If not, send me screenshots of your unit settings including the Product Filter section and the unit result page.
By the way, if the data that the plugin fetches from the Amazon server do not include products you specify with White List, then the result will naturally be empty.
