Gridbox container width works in editor but not on frontend

Hello,

I’m experiencing a layout issue with Joomla 6.1.3 and Gridbox 2.20.3.

Page: https://shop.studiohs.net/cjenik

In Site Settings → Layout, the container width is set to 1170px and responsive mode is enabled. The layout looks correct in the Gridbox editor, but on the public page the header, content and footer stretch across the full browser width.

Saving the settings again and clearing the cache did not resolve it. During frontend inspection, the loaded responsive.css stylesheet contained no parsed CSS rules, and the .ba-container elements had no explicit width.

Adding this custom CSS fixes the appearance:

.ba-row-wrapper.ba-container {
width: 1170px;
max-width: 100%;
margin-left: auto;
margin-right: auto;
}

The workaround is currently active, so the public page may look correct when you inspect it.

Could you help identify why the configured container width is not being applied on the frontend, and how to restore the normal generated styles without this workaround?

Thank you.