Steps to Reproduce
1. Install the plugins Domain Extensions Installer, Domain Support, and Performance Analytics.
2. Navigate to a Dashboard which has PA widgets or create one with PA widgets.
3. Open the dashboard properties.
4. Select Domain Configuration and click on New.
5. Create a new configuration with type = visibility group.
6. Navigate back to the Dashboard.
Observe it is not possible to see the domain configuration created, and the browser console shows the error: "Cannot read property 'length' of undefined".
After carefully considering the severity and frequency of the issue, and the cost and risk of attempting a fix, it has been decided to not address this issue in any current or near future releases. We do not make this decision lightly, and we apologize for any inconvenience.
Related Problem: PRB1315890