New Post: Cannot assign new users to project after upgrading

I'm autoreplying I've narrowed down the issue but is still there:

If you add a new user, after an upgrade, you cannot add him in any role in any project.
The workaround is after adding the user go to "user accounts, edit user, manage role for this user ->add any role in any project "
Magically now you can add that user in any role in any project.

It seem that the new registration doesn't create some information on new users, I'll hope the fix will be out soon.