It seems like only the dashboards that are in *SuperDomain* exclusively function in WebView and those in *Production* and *SuperDomain* do not. All of the alerts and metric groupings overlap so that should not be an issue, although it does seem like even with moving the dashboards, WebView is slow to show the most recent errors and also does not show the same as the live view in Management Module.
Issue happens in IE and Firefox, Chrome is not approved for use at this facility.
If you click Ok on the error, does the dashboard load properly? Also what version of Webview are you using? I believe that is a known issue with APM 970
Unfortunately, clicking Ok doesn't load the dashboard properly. I know that we are running 9.7 but we are in talks with updating to 10 as long as client approves.
I would suggest opening a support ticket then to investigate this further then. There a number of known issues with dashboards in APM 97 and the support team should be able to review your Webview logs and confirm if upgrading will address the issues you are experiencing.