I am writing on behalf of a friend of mine that is having this problem...we are doing a website together and she cannot use the visual editor because the text runs off the screen (doesn't wrap). This has been fine for awhile because she'd just work in html mode...but just yesterday for the first time (presumably after recent upgrade...not sure that's the cause, but seems like it must be) the html is being stripped every time she tries to save it.
I know this used to be a problem awhile ago, the stripping of html when switching between visual and html editor...but I hadn't seen it for awhile so thought it had been fixed.
So we really have 2 problems: nonwrapping text in visual editor and stripping of html in html editor.
I have NO idea what to do about any of this. Ideas?
Oh and she is using Chrome.