When editing vertices to relocate an electric junction and change the subnetwork connected to the service line, mark the new subnetwork as dirty while the original subnetwork is never flagged as dirty preventing the Update Subnetwork tool from being performed.

Workaround

The ArcGIS Server 10.9.1 Utility Network and Data Management Patch 3 now live on the support site. The URL is: https://support.esri.com/en/download/8077

Summary: This patch addresses several functional issues with the 10.9.1 utility network release, and core data management issues. In addition to the issues listed below, the patch addresses issues focused around performance of enterprise databases and performance of the utility network.

Steps to Reproduce