I am trying to use automation to improve our reporting by automatically setting a field to the total time spent on a ticket. I am trying to accomplish this by setting a field to be the difference between the start date and when the issue was resolved. I'm using seconds in my rule for the sake of testing.
The rule seems to be running successfully however the "Time to Resolved" field is still empty afterwards. Time to resolved is a Date Time Picker field.
I've attached screenshots showing the full rule. Any ideas why this isn't working?
Thank you

