PBCS Task Manager issue access new users on enabled group

Summary:

I have a problem with the PBCS task manager when adding new users to a group linked to a scheduled template

Content (required):

Hello everybody,
I have a problem with the PBCS task manager when adding new users to a group linked to a scheduled template.
When I schedule a template, all users present in the group at that moment see the connected tasks without problems (there is the Any Assignee property)
If a user is later added to the enabled group, this user has no access to the linked task.
To solve this situation you have to restart template scheduling.
How come there is this problem? Do I have to launch the template every time?

I noticed that the problem does not appear in 2 cases:

1) if a