Trying to set schematic layout algorithm properties within the schematic designer, but the property page button is not shown (when choosing the layout algorithm as the default algorithm on startup for the diagram type), also the properties button is disabled when accessing it from the list of layout algorithms within the layouts configuration tab.
The algorithm works within ArcMap as well as the property page, but within the designer they are not enabled.
I tried using the sample code here (Git Hub Samples) and it also has the same issue.
Any information on what is required to make the property page work within designer.
I am using ArcGIS 10.6.1 , the same code used to work on 10.2.1 with no issues.schematics