Hello,
1&2) Please provide the URL of the website to check it myself and help you out accordingly.
3) Please try adding the following Code on the child theme functions.php
add_action( 'wp', 'move_upsells_after_related', 1010 );
function move_upsells_after_related( ) {
remove_action( 'woodmart_before_sidebar_area', 'woocommerce_upsell_display', 20 );
remove_action( 'woodmart_woocommerce_after_sidebar', 'woocommerce_upsell_display', 10 );
remove_action( 'woocommerce_after_single_product_summary', 'woocommerce_upsell_display', 15 );
add_action( 'woocommerce_after_single_product_summary', 'woocommerce_upsell_display', 5 );
}
Best Regards