Dokan add Out of Stock in a product of the gallery

I have the follow code linked to the action dokan_new_product_added

add_action( 'dokan_new_product_added','save_product_meta', 8, 2 );

function save_product_meta($product_id, $postdata)
{
    /*$product = wc_get_product( $product_id );
    $product->set_manage_stock(true);*/
    update_post_meta( $product_id, '_manage_stock', "yes" ); 
    update_post_meta( $product_id, '_stock', 1);
}

When the user follow the JavaScript flow to add a Product (tmpl-add-product-popup.php), the bug does not occur. But when the user follow the PHP flow to create a Product (new-product.php) this error happens.

ERROR: It is showing a Out of Stock overlay over the image of the product, even the product having stock as shown in the image.

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