The Content Template 3 Column Not Workinh in Archives

Hi there,

Is this a CPT archive?

If so, the customizer option can not control it.

You'll need to add this filter to make it work:
https://docs.generatepress.com/article/using-columns-in-the-blog/#adding-columns-to-your-custom-post-type

This is the Google web stories archive. I added this. But nothing changed.

add_filter( 'generate_blog_columns', function( $columns ) {
    if ( 'web-stories' === get_post_type() && ! is_singular() ) {
        return true;
    }

    return $columns;
} );

Is your CPT slug web-story or web-stories?

Can you make sure it's correct?

Thanks a lot. It was my mistake. That slug is web-story.

No worries!
Glad it works now :)