Blog Plugin Styling Intermittent

I have my blog posts styled the way I would like, but the styling doesn't seem to be sticking. Often when I go back and look at posts, the font is much smaller, links are formatted differently, etc...

I've found that I can temporarily fix this by navigating to the Theme Customizer. *Almost* always after opening the theme customizer and then closing it, the formatting will return. However, when I later come back into that same post, the formatting may or may not still be there.

Any ideas of what could be going on?

Here are a couple of screenshots so you can see what I mean. The formatting with the green links is the desired look.

https://uncommondream.com