Email for the assigned person does not work

Hi everyone.

I have a problem sending an email when responding to a ticket.

I have the collaborators who receive the email, as well as the creator.

Unfortunately the assigned person never receives an email when a response is given on the ticket.

I looked in:

Settings -> Tickets -> Auto response

The boxes in "New Message for" is checked:

- Creator: Send an acknowledgment of receipt
- Recipients: Send a message during a modification

EDIT
And Ticket Assignment Alert :

- assigned_alert_staff
- assigned_alert_team_lead

is checked
/EDIT

I tried to look in the code, but I can't find anything.

I think $replyTypes in ticket-view.inc.php, the 'all' option doesn't embed the assigned person.

Any ideas ?

Auto responses are to Users.

Please check Admin panel -> Settings -> Tickets -> Alerts and Notices for Agent (staff) notifications.