kjamal
Then that doesn’t quite make sense. Are they limited to only Assigned Tickets? (Admin Panel > Agents > Agents > click on an Agent > make sure "Limit ticket access to ONLY assigned tickets" is unchecked)
Also, are you sure they have Primary or Extended Access to the Ticket's Department and not just access to a Child Department or vice-versa?
Just to note, they should never get an "Access Denied" message after creating a Ticket if they have their Profile's Reply Redirect setting to Queue as it will never try to open a Ticket post-creation; only if the Agent manually selects a Ticket.
Cheers.