Hello suprajam,

To deal with this kind of behaviour, we implement a mecanism with specific event and we wait for it in a workflow.

The event is generated by a business rule when all the tasks of a requested item are closed, and passed to its workflow.

At this point, you have to write a job, scheduled each hour, to auto-close tasks older than one day.

As your flow is waiting for event, it will be triggered when the tasks are manually or automatically closed.

I'm not used to working with Flow Designer, so I don't know if you can apply this in flows.

I hope it can help anyway.

Regards,

Loïc