I wanted to inform you, that by using elementPro to create the PRODUCT DETAIL page "through the ElementPro Theme Builder", the product page does not display the banner: On-site messaging.
When I disable ElementorPro the "On-site messaging" message is displayed correctly.
I hope I have explained correctly.
see Attachment. With Elementor Pro and without elementor Pro.
Version 1.7.0 of Klarna On-site Messaging for WooCommerce has been released and includes the fix for this issue.
This has now gotten a fix that will be pushed and included in the next version of the plugin.
I solved the problem by inserting the shortcode, then I confirm the resolution.
We use the WooCommerce standard hooks and it's possible this causes a conflict with Elementor Pro. We plan to add support for this but need to look into it further.