Problems in my site private pages after upgrading Grav 1.3.3 and latest release of Login plugin

After upgrading Grav 1.3.3 and latest release of Login plugin, I'm be able to login to my private page, but in every private pages I see Welcome page!
Do you know if are there incompatiblities with previous version in page frontmatter "access" section?
Thank you

I have a group named "jury". This is the user/config/groups.yaml file:

jury:
  groupname: jury
  readableName: Members of the Jury
  description: 'The group of Jury Members'
  icon: users
  access:
    site:
      login: true
      voting: true

In user account file I have:

groups:
  - jury

Now, adding in user account file this:

access:
  site:
    voting: true

I'm be able to view private page!

So, why do I have to add user access without using the group access rights?