New user login issue

Whenever I create a new user (new account), and user tries to login with the credentials, the screen shows as login success for a second and logs out.

I have been seeing this issue since almost 2 years (Since I started using cwp)

I have found a method to get through this. If I change the package (I use List Accounts screen and package edit icon), the user is able to login smoothly. So I assign a wrong package and later edit and select the correct package so that user can login.

Hope someone will check this issue and fix.