My logo used to appear in the upper left corner of every page on my site. It no longer does. I verified that the logo file is still installed, and even deleted it from the Header setup section, and re-attached it, but no joy.
I’m running WP 5.7 and X 8.2.3. I was running slightly older versions of both earlier today when I first noticed this problem. The problem persists after update on both my Mac and iPhone.