Hi Everyone,
I currently have a water utility network service Built with ARCGIS PRO 2.9.6 and published to ArcGIS Enterprise (10.9.1).
I have created my subnetworks and I'm trying to create a basic diagram once iI have traced my subnetwork, but the tool New diagram doesn't show any template

As you can see, I have the diagrams created for my subnetworks

If I validate my topology, I don't have errors and upgrading my subnetwork, everthing is also ok.
In the tool Find Diagrams I can see Diagrams created and I can Add to a new diagram map

What could be the problem?
Thank you