Oxygen builder dynamic CSS not being exported properly

CSS styles are not working after export. They are in fact there, and I can go to them by looking at the page source code.

But the entire page is unstyled.

I am rewriting URLs as so:
```
wp-content/,contents/
wp-content/uploads/sites/2/,contents/uploads/
wp-includes/,includes/
```

And:
```
wp-content/,contents/
wp-content/uploads/sites/2/,contents/uploads/
wp-includes,includes
```

What is causing this to fail to render CSS?