Thanks for all your efforts.

I dont have a "switch to advanced tool", top right, left or anywhere, presumably its already advanced.

Also I can get additional categories in "Clothing, Shoes, Accessories > Women's Clothing > Dresses ", (although I'm more of a jeans guy myself:), and "Jewellery & Watches > Loose Gemstones", those cats are fine.

Random testing seems to be that no additional cats in the computer category, (random samples).

What happens if you try to list in the computer section, specifically "Computers > Enterprise Networking, Servers > Server Components > Server Memory (RAM)"?.