Thank you!, yes WPengine entered the wrong cookie, and when they added the correct one, it worked. Thank you!
The other plugin is able to save the cookie. Passster used to do the same, but I dont see the cookie anymore. Here is what I see:
https://app.screencast.com/gLTpoAzMmgCpE
I have created a test page: https://cowboys4angels.com/test/
I am trying another plugin to see if its WPEngine or the plugin. The second one works, but Passster is not working.