The toggle switch indicator to select whether or not a post has been labeled as featured does not appear, though the link works.
I am also unable to see the toggle switch for displaying the post graphic. I have tried this with multiple browsers and computers. The issue persists.
Let me see if I can try and help you a bit. You login via your WIX Account, Select your website and are now within your websites Dashboard. On the left hand side you should now notice Blog (New).
Once you've done that you'll notice your blog posts. On the Top right hand corner there is "Create New Post" Select that.
You'll see "Add a Catchy Title" on the right hand side you'll notice "Post Settings"
Once expanded you'll notice right under "Display Cover Image" - "Feature This Post"
If you do not see this I'd recommend you contact Support.
Now if you have selected this already you'll notice that your Blog Feed will have a little blue badge on it.
Hope this helps.