Base layout not being picked up

This is my directory structure:

image

The technology.md file has front matter saying: type: "tech"

This means the layout file used is: layouts/tech/single.html.

Problem:

I expected it to use the base file layouts/_default/baseof.html.

However, it isnt. How do I tell it to use my site’s default base file?

closing.
was an issue in my tech\single.html template file. had an html element defined before the block which seemed to mess up the template parsing.