You’ll probably notice some weirdness for a while when you go to an older page or post on the site.
I’ve recently made a theme change, and since I was using a custom built theme (I built it, and that was why it looked homemade, because design is not one of my true skills), the way I used featured images was quite a bit different than the way this new theme uses them.
Until I get all that straightened up, things are going to look weird. Apologies in advance! :-)