Blog.familyhistoryfanatics.com (the wordpress site) does have the thumbnail as the lead graphic. I'm moving everything to Wix and the thumbnails don't appear on the blog posts. Here's an example of a blog post without the Thumbnail https://www.familyhistoryfanatics.com/post/how-to-research-us-tax-records

Thanks for the response to point 2. That's really too bad. I want to overwrite the file without having to then find (which is not easily done) every instance of the image being used on Wix and then update that image. Wix sounds like it would be a good alternative to WP but now it sounds like a terrible choice as well.