I am using ArcGIS Pro 3.1.3. I would like to export a layout as an interactive pdf.
The ESRI support article - https://support.esri.com/en-us/knowledge-base/how-to-export-a-map-as-an-interactive-pdf-in-arcgis-pro-000027943 - says to check the 'Export georeference information' box, and select 'PDF Layers and Feature Attributes' from the 'Layers and attributes' drop-down menu - see screenshot below.

However, when I try and do that on my version of Pro, I see no such option on the drop down menu - see screenshot below:

Does anyone have any ideas of what is going on here?