User blog comment:Sarah Manley/New Editor Scheduled for Sitewide Release/@comment-1331296-20110901072144

I'm having the category issue you mentioned, sigh. The module on the right isn't allowing me to see anything, add or remove anything (already mentioned). In addition to that, when I add categories by typing the category name in the normal text box of the article, it removes the categories already in-place and replaces them with whatever I type.

We have noticed that some IPs are having this issue too during normal editing. Sometimes when they edit the categories are randomly removed.