I see that this is back in 2019. Hopefully this will reach someone within Microsoft.
We currently use the Planner for workflow. We found that in one plan that has all the staff and their tasks are in one and did not want to share the entire planner with each staff person as they would see all the assignments to each staff member. So the solution we thought would be to copy the plan and eliminate those that don't belong to that individual staff memeber. The problem that we are having is that when the copied plan is updated it does not update the original in which it was copied from (Master Plan). Is there a way to have this accomplished? Or is there a better solution that you can let us know about to solve this?
Thank you for your help.