I have one of my subsite users who does not have a working "visual" tab when in the post editor. The text tab is fine.
I can see the visual tab from my computer for this subsite fine.
But I wanted to ask the multisite experts for your opinion. I don't want to start adding plugins I don't need on my network. By the way, this plugin says it help relieve usage on the server because it uses Google's library instead of Wordpress. Is this true and a good idea.
Any other tricks for getting a functioning visual tab back besides just trying to clear the cached with F5?