Wall elevation views move to new floor when insert a floor in plan

[adventhomes]

Does anyone else know if this is a bug or intended feature or a way to prevent with settings?  When I have an existing floor plan with wall elevations & then go to insert a new floor below the existing one, the elevations drop down to the new floor ... definitely not what I want / need.  Anyone know how to keep them on the floor they were created on?

 

I am on X9, Mac version.

 

Also should be noted that if I attempt to add a floor above, then "Exchange with floor below" it fails to copy the elevation views to the floor below.