Not Logged in On Frontend when logged in

Are you using CloudFlare or any other form of caching mechanism? If so, clear the cache there.

no not using CloudFlare or any other form of caching.. very strange

after more testing.. the problem is something tp do with https / ssl site
when on a url with https (checkout) site showing admin / and is_user_logged_in() shows true –
so logged into backend its ok but on front (http) is_user_logged_in() is null
In 3.+ this was working ok – there must be other users that use https that are having the same issue..

UPDATE
FORCE_SSL_ADMIN set to true is the problem!
set to false (all urls http) including admin backend
and is_user_logged_in() to show true

— BUT
I run a subscription site
I need to have ssl for admin logon checkout and ssl pages
when user is logged on front in I need
vars like is_user_logged_in() to be available + admin menu

IN 3.+ this worked fine both http and https is_user_logged_in()
and admin menu were available.

Any one have a fix for this ?

Any success fixing this? I’m having the exact same problem. After digging a bit I realized the problem is due to the cookies constants (in my case SECURE_AUTH_COOKIE) not being defined resulting in wp_parse_auth_cookie() failing to parse the cookie.