In your example, the paragraph ‘Introduction: My Life…’ and ‘Update’ use the same Paragraph Style and the setting ‘Space Between Paragraphs Using Same Style’ is set to 0p0. That’s why the Space After setting of 1p4 is having no effect.
To make it to work, change the ‘Space Between…’ back to its default setting of ‘Ignore’.
Hope this helps.
Adobe InDesign team
An error occurred while saving the commentAnonymous commented
Nope, not in 2021. Just moves spaces between lines in the first paragraph.