I noticed a issue with canvas which renders the screen on the web ui, on my Comet pro fw 1.7.0.
This often seem to happen when the browser is idle or the page is not focused, this results in a loading screen but then results in a white canvas but it breaks because it does not recover.
When I use my password manager alot of times the idle times are enough to replicate it.
I see this happen on the Brave browser on Android (Poco X6 pro).
I suspect that some browsers have not fully implemented WebRTC, causing them to be unable to actively request the KVM to update the screen when the display is abnormal.