Author not showing on blog posts – 3 active authors

Hi; I read through old responses and I've made sure there are multiple authors, yet they still don't show up on the blogs themselves, and if I go to the category "blog" my icon shows up on all of them even though only one is posted by me! Main blog page: https://www.writersdrinkingcoffee.com/blog/ Blog category page: https://www.writersdrinkingcoffee.com/posts/category/blog/ Individual blog post: https://www.writersdrinkingcoffee.com/posts/my-newest-favorite-writer/ I'd like the (correct) author to show up next to "Posted on" on all three of those pages. Thanks! Dee