For some reason, the "Infinite SEO" plugin is no longer showing up. It was showing on the sidebar as an option while I was logged in as a super admin and not showing for the rest of the network. However, it's not showing up for me as an admin now at all. I'd like the plugin to be available to the network. The plugin settings say that it's active across the network, but it's no longer showing up.
For the support ticket, I had to choose a plugin - "Infinite SEO" isn't in the list so I had to choose something.