This has been such a handy plugin. I've been using it for the last several weeks and love it, but today it started not working correctly.
I can switch to some users, but not others. Some users will switch, but when I go to "all posts" for that user it reverts to the admin and shows all posts for the site. Once this happens, I can't switch to that user again.
The only thing I've done differently today was to add the plugin, "Add Link to Facebook". I don't know if this caused the problem with your plugin or not. I have since deleted the Facebook plugin and deactivated the app on the Facebook side. And I deleted the User Switching plugin and reinstalled it. Also I shut down and restarted my computer. Nothing has fixed the problem.
Any advice please?