Wp united forum login doesn't work until wordpress login

[amanhstu]

Wp united forum login doesn’t work until wordpress login. Here is the forum login url http://capperuniversity.com/forum/ucp.php?mode=login&sid=1e918b2c80da2fc4cd47d45a9d4a9eb6&wpureload=1

When I use my username and password then it says you are successfully loged in but actually it is not. But if I loged in to wordpress dashboard and then login to forum then it works.

What is the problem with it.

https://wordpress.org/plugins/wp-united/

[kachan64]

Do u have a mod on WordPress that effecting this?

[Johan F00]

Might be a caching problem on your WP side.