I’ve checked the plugins and we don’t have any sort of cache plugins installed.
The site show the login info on every page after I’ve logged out of edit mode. In order to make it disappear, I have to hit ctrl-F5 to refresh. On one site, that’s no big deal since I do it from home but the other site is at work, public library, and I’d have to go to every computer and do the ctrl-F5 every time it happens. It’s weird that this just start happening this past Thursday (March 9).