Workflow Notification - Send dynamic list to multiple performers

I was wondering if you could possibly answer a question for me or point me in the right direction to find it. I am trying to create a looping workflow that sends out several notifications at once to specific supervisors containing a dynamic body (list of employee information) for their specific employees. During my last attempt my first procedure gets the supervisor ids, the second one gets all of the employee’s for each supervisor id, and the last one (is supposed to) sends the email to each of the supervisors (within the role) with a list records for their employees. The only problem is that it is not looping the performer. Does it have to do with the unique itemkey? Do I need to utilize loop on revisit for my process? The bulk of my notifications that I need to create revolve around sending lists versus information for one employee.