Send From Triggering User - not working


I have an automation set to "send from triggering user" for when any cell is added / changed that links to a sheet .

I am the sheet owner .

If a person called John Doe fills in the mentioned form from his logged in Smartsheet account , theoretically the automation should kick in, send out and notification email to the relevant person from John Doe ( since he is the triggering user )

However , the email notification does send end BUT always comes from myself - The sheet owner .

I have set permissions to unrestricted .

Im a bit stuck . Any help would be greatly appreciated.