Suddenly, the LastPass autofill is stuck on one username/password for each site. I have more than one login for certain websites, and before, it was no problem to change them. Now, when I click on the red button inside the username field, the list of possible usernames shows, but when I click on one, nothing changes, it stays the same.
I seem to remember there was a setting something like, "Don't change username if already filled in," and I checked it, not thinking this would happen, but it simply wouldn't automatically fill in something else if it's already filled. But I can't find that setting to undo it.