Hello. I am using WordPress SEO by Yoast since I installed the website. But I see that its not working perfectly and there is a bug in it.
When the Tags exceed to 50,000 it did not break the tag sitemap. And google did not accept the sitemap that is more than 50,000 urls. In the post it automatically breaks for every 1000 and on the tags it did not. If you fix that tag sitemap automatically break after every 50,000.
I request to the admin of the WordPress SEO by Yoast that please take a look on this.
Please check the tags sitemap. Why its not moving forward.