Ok, today I dug deeper into this. The problem seems to be that the Radial Gauge Widget does not work on the WebView Shell app on the WR panel.
I made a WebIQ application "gaugetest.zip".
Also, see photos of the gauge in both Chromium and WebViewShell on the WR21 panel.
Linear Gauge works. So does the legacy Widget radial-gauge2.
It must be an issue with the Radial Gauge in WebIQ. I tried to look at the html of the widget but that is too hard for me.
I updated my WebIQ Designer and Server to 2.13.0 from 2.12.1 and added a new gauge widget - no different.
The Dashboard demo from Smart HMI does not work either. See Live Demos (WebIQ CustomerArea) (smart-hmi.com)
Thank you for providing the information. We can see that the browser is based on Chrome/Chromium 74.
However, WebIQ currently requires at least Chrome 78 (for reference: the current Chrome version is 112)
This means that the HMI is not guaranteed to work and even though your HMI might be working on that version if you do not use certain widgets this can break with later versions of WebIQ also as we require at least version 78 currently.