Inventor 2016 - Section view problems

Q: My half section view and my drawing views are not sectioning all parts.

A: Inventor by default does not section standard components (from the content centre). To section these parts, change you application options:

Go to Tools >> Application Options

Then select Section all parts

If you do not wish to section every part, have a look at this handy article: https://www.cadlinecommunity.co.uk/hc/en-us/articles/201908591