Cannot Find Updates Notification in Dashboard

I uploaded the most recent version /wpmudev-updates/ plugin folder to my /plugins/ folder and (Network) Activate it.

I have checked to see if I have an older version of the plugin installed, /mu-plugins/ directory, and I do not.

Problem is, I am not being prompted to enter my WPMU DEV API Key. The pink alert at the top still says that I need to install the updates plugin.

I've looked in Network Admin & in Site Admin, and I do not see it. I've gone around in circles looking for it, can't find it.