I am using Nintex 2013 workflow with SharePoint 2013 on premise. Reference the attached workflow:
Thanks for any help you can provide.
are there any specific reasons why you decided for this kind of design?
are you aware of nintex provides several task actions? eg. Assign Flexi task one?
with task action you do not need to do any custom looping nor pausing.
when you assign a task to somebody, workflow stops at the action and waits until the task is responded in a defined manner. once the task is responded, the workflow immediatelly continues.
within the action you can configure regular notifications, or even escalation as well.