The latest were Easy Adsense, Quick Adsense, and All In One Adsense and YPN plugins.
None of them seem to work anymore! I am able to find others saying the same thing, and apparently, they all also force shared revenue, with no option to turn it off!
I am now using Adsense Insert plugin, it is decent, has more robust features than All in One, and more importantly, it allows me to turn off sharing (my site is too new for that right now!) and it works.
Just a heads up, wanted to share it to the forum in case others notice their ads not showing, these plugins are probably why! I don't know if it's other plugins I use, or if it is the latest version of WP doing it, but they don't work, and I want to give a heads up.