for one and dont know why your site map from yoast is http:// protocol NOT HTTPS:// as it should be, serving http content is something you should check on and not serve MIXED content, should be on https only, Check wp; settings , general => make sure its correct there as first thing, other issue you have which could be doing exactly that, is 'TEMPELATES' as well as 'blocks', those could easyly be responsible since they are often littered with different links and so on so forth. That must be turne off in yooast, not be displaying when you go to /yoursite/sitemap_index.xml they should not be there if they are go to those and double click and see what exactly is in both of those maps. Then you should be able to figure out what exactly is being used for and where it is within the site THIS IS JUST ONE OF THE MANY CONTAINED WITHIN YOUR SITEMAP https://abodeinfo.com/12584269199.htm