Frontend logout but backend still log in

Hi guys, i’m having a problem, when i log out from either frontend or backend, the other still remain log in. Have been searching online for the solutions but did not find anything like this. What should i change so that when i logout from frontend or backend, the other one will also log out. Log in is working fine for both

public function actionLogout()

        return $this->goHome();

How did you configure user component?

How can i check this, i never did any changes to the user component