Builder Not Making Updates

The builder has been working very nicely on some recent sites (I make changes in Builder and the site goes live with them), but now Builder appears back to its old ways of ignoring my changes. Even if I go in and make the changes in CSS, it ignores them. You can see in the attached screenshot that I'm directly in Builder and changing one of the text screens. I want to change the font size, color and add a shadow effect. I have made the EXACT same changes in Builder on other sites. But it's a no-go. I am working in an anonymous Chrome browser to eliminate Chrome as a possible problem. Any help is most welcome and I have granted support access. I installed Fixer and even outside of Builder it would not let me rename Fixer to the Theme version I was going to call this iteration. Very odd.