Hello,
It was thought that there was a solution to the issue described in detail here:
But… It appears that the problem is back. I am working with the same site I was working on when I posted originally
Pro 2.3.8
Yoast 9.0.2
functions.php: add_post_type_support( 'page', 'excerpt' );
Please have a look at the issue in this video and advise on a way forward asap. Thank you guys!