Was working with “Sider” and had done most of my color adjustments, had adjusted spacing the way I liked it, etc., then I set up an “inside-navigation” hook to place an image on the navigation at left under the site title, which worked fine but then the content part of the page, the four items with accompanying images lost its formatting. I removed the hook, but the formatting was still lost.
I have no idea how to solve this. Emptied cache, just in case.
Did any Modules get disabled in Appearance > GeneratePress?
If not it looks like you just need to:
1. Add some padding to Customizer > Layout > Content.
2. Add a white background to Customizer > Colors > Content
3. Disable Padding from Images in Customizer > Layout > Blog > Featured Images –> Archive
Yes it was odd! Just as mysteriously the formatting was back to as-it-was. When it was not right, the featured images were large and there was no padding between any components. Next time I will double check that all modules are activated– because yes, at some point, not all the modules were active. I did activate them all first thing. So… still a mystery, but thank you for the solutions to try if it happens again.