I have created a sub theme of the Bootstrap theme and I'm running on 2.6.3. I have added a custom css file to my theme that makes a couple of small adjustments to my theme's overall look. And everything looks right when I'm using the theme designer mode But when I turn theme designer mode off, it stops registering the first css rule. It doesn't matter which rule, just the first one at the head of the file is skipped.
I put a .bogusClass {background-color:#fff;} into the top of the css file, and now it works without theme designer mode. But that seems weird, and I feel like I'm missing something. Am I leaving out a header or missing something?