Hello
I want to show the days when the issue has been transitioned to the in progress status. I have used 3 automation rules:
1. Todays date
2. In progress date
3. Days
I have created 3 custom fields: 2 date pickers and 1 number field that needs to show the exact number of an issue being in the in progress status.



All automation rules work except the third one that I found from one of the articles here.
When the 3rd one executes, there is no number being shown, only the "None" value.
Where am I mistaking?