I upgraded some of mine only to find the same repeated problem: the visual editor wouldn’t work correctly. The buttons disappeared, the text was whited out, and you couldn’t work in that mode.

I’ve also had another minor issue that comes and goes as it pleases. When I go into the theme editor, sometimes the stylesheet (which shows up by default) extends over the links on the right, meaning I can’t see or click the template page I want. Since one or two are usually visible near the bottom of the list, clicking on one of them clears up the issue. But it’s a royal pain in the neck.

Visual Editor Fix

I can’t say this will work for everyone, but if you did upgrade and you’re having a problem with the visual editor, here’s what worked for me.

Go to the tools section of your admin, and click on the “upgrade” link. Click the button to “re-install automatically.” After that, clear your browser cache and navigate back to your post edit page. At that point the editor worked fine for me.

If you know HTML and are comfortable writing in it, then you can do without the visual editor. But I know all writers here who blog don’t necessarily work in HTML. For those of you who don’t, I hope that fix works.

Other than that, I’m keeping my eyes open for other problems, but am hoping they come out with an update asap fixing these issues. *crosses fingers*

EDIT: The 2.8.1 beta release is available if anyone wants to use it. (Thanks Ed!)