Thanks, that was the same thing I just figured out.
There was a plugin installed named “PBP Own post & media for Author” that used $wp_query->set( 'author', $current_user->ID );
I didn’t resolve it completely, but I think I have a workaround. It is for WooCommerce, and I bought a $79 extension to accomplish what I was trying to do.
I appreciate your time.