Everything was going smoothly with my SASS compiler. The styles were reacting perfectly in the live web server. But then, out of nowhere, it stopped working. Upon closer inspection, I realized that the extension had created a new CSS file. Instead of compiling into my original 'styles.css' file, it generated a separate one called header.css. This caused a problem because my 'index.html' document was still linked to the original 'styles.css', which was no longer being updated. As a result, the styles are now failing to display correctly on the live web server.