Hi Aaron,
Thank you for your post.
On a machine, I have installed ArcGIS Pro 2.4 and I have applied Patch 3. I am running ArcGIS Pro 2.4.3. My License Type is Single Use and my License Level is Advanced. I have licensed Defense Mapping, but, I have not licensed Production Mapping. When I try to execute Create Structures or Difference Polygon, the construction tools are not enabled. When my cursor hovers over the tool a tooltip appears. At the bottom of the tooltip, you should see the following:
Available with Production Mapping license.
To enable the tools, you will need to license Production Mapping.
On a machine, I have installed ArcGIS Pro 3.1. My License Type is Single Use and my License Level is Advanced. I have licensed Defense Mapping, but, I have not licensed Production Mapping. The Create Structures and Difference Polygon construction tools are enabled. I can execute both tools.
Can you upgrade to the latest version of ArcGIS Pro? As of today, ArcGIS Pro 2.4 is retired as of July 01, 2022. Please refer to the following link:
https://support.esri.com/en/Products/Desktop/arcgis-desktop/arcgis-pro/2-4-3#overview
Regards,
Dan