How to determine where outlines are?

I am trying to delete a location in SWE17 and I keep getting an error:

But I can not find any outlines that would match this location.

Does anyone have any thoughts of how to determine where these outlines are?

I have no components in that location.

This question is similar to below. But I can not run a report to look for outlines.

SolidworksElectrical