Hello John,
I too am experiencing this behavior after a few years of it working flawlessly.
I tried clearing cookies with no joy.
I want to report that I did find a solution for me. I had WPSecurity configured to do Force Logout. Disabling this allowed me to switch users again. Yay?
I would like to have Force Logout. It makes me nervous to allow members to have a session open for days and days and days…
Kindest Regards,
Carol
