I had updated my blog email (was starting to get spam) and didn’t realized that the admin email was still pointing to the old one. All emails being sent to my previous blog email were automatically deleted. Therefore, when comments came in asking for approval, I never got them. I just realized today with a queue of 12 comments that I needed to approve, delete, or mark as spam.
If you had submitted a comment earlier that needed approval and it was “legit”, it should now show up.