Edit notifications options are always grey but can click and open a popup

Two Problems

Steps to reproduce problem one (see notifiction.png):
1.Open Alerts / Actions / Manage Alert Notifications
2.Create an alert notification named test
3.Select the created notification and click gear icon, you will find Edit/Duplicate items are always grey but you can click and open a popup.

Steps to reproduce problem two(see notification-2.png):
1.Open Alerts / Actions / Manage Alert Notifications and delete all notifications if exit
2.Firstly click the gear icon and then click Edit(Duplicate) item,some errors ouput in browser console.