Hi again,

Any values set in the Customizer under Typography > Headings are being over-ruled by later/higher-spec inline styles.

For example I have set h1 in the customizer to:

@media (max-width:544px) {
    h1, .entry-content h1 {
        font-size: 25px;
    }
}

@media (max-width:921px) {
    h1, .entry-content h1 {
        font-size: 28px;
    }
}

h1, .entry-content h1 {
    font-size: 40px;
}

This is then followed by inline rules for .entry-title { at the same break points, and then overruled again by inline rules for .ast-single-post .entry-title, .page-title {

Please reduce the number of inlined rules on headers or increase the CSS selector specificity generated by the Customizer.