Cloud access on browser shows white screen

We have a temporary solution for you : you can click Google Chrome browser short cut , then right click it , click Properties , enter --disable-features=RemoveRedirectionBitmap into Target without deleting what's in it originally , then click Apply , reboot the Chrome browser then login to NVR web again , it works on our PCs that have this issue so it should work on your end too , please let us know your test feedback.
For example : "C:\Program Files\Google\Chrome\Application\chrome.exe" is the original text in Target , all you have to do is enter --disable-features=RemoveRedirectionBitmap after that and reboot Chrome to login to NVR again , so what you see in Target should be "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-features=RemoveRedirectionBitmap .