adrian7

That’s right because anytime you load a php page, the object(s) will re-create, as you load it for the first time.
You can’t store something in a static var and then expect to be available later when re-loading the page – PHP is different from Java/JSP.

You have to use $_SESSION for that.

Yap! Thanks a lot! ??

Thank you very much. I will try it out and come out with updates.
I noticed you are a moderator, so I guess it would be useful to redirect/move/link the thread https://en.forums.wordpress.com/topic/possible-to-use-the-visual-editor-in-my-own-plugin/ to which I was first guided by Google to here.

I had the same problem, but it appeared just after uploading the WP-reCaptcha files. So removing them had solved it.
Well so, it seems to be a bug of the plugin or an incompatibility with WordPress MU 3.0.
Digging it… .