Hey @Daedalus01,
Yea I am testing it from the agent side (/scp/tickets.php?a=open) but the field still shows up... though the check box as been unchecked for agent, as on the screenshot above...
So for you, you're able to display a field that shows up for clients and is "hidden" for staffs?
I did not mention that my field is in the ticket details form, don't know if this has anything an impact on the behavior...?