ArcGIS Pro 2.9.4 and ArcGIS Enterprise 10.9.1
I followed the tasks in Water Utility Network Foundation, and, when I published the map "Utility Network Editor or Utility Network Editor Runtime",when I open the map in the Portal, I have errors to loading the features.
When I open the feature service about Utility Network, the features loading correctly, but, when I open this map "editor", I have the errors.
In Map Viewer
Translate the error in image: There was an error loading this layer
In Map Viewer Classic
Translate the error in image: The Sewer Device layer is not a supported type and cannot be added to the map