Dashboard Maint

My engineer is swearing that her Update Dashboards is supposed to updatable. However, I can find no hint of it ever being updatable. Although, when I search for this dashboard, it is not found and I have to go through the Dashboard Maint, find its dashboard name and pull it up that way. So, what am I missing? Note: It apparently stopped updating after I added the field CommentText to the dashboard.

If it is a runtime dashboard, was it re-deployed?