Editor role not saving settings page for custom post type

In the wp-admin/options.php file you find filter with name created from your settings group to control permissions:

$capability = apply_filters( "option_page_capability_{$option_page}", $capability );

to fix issue, add filter with your desired permission level like:

add_filter( 'option_page_capability_programme_content', 'my_settings_permissions', 10, 1 );
function my_settings_permissions( $capability ) {
    return 'edit_pages';
}