Since few days, web access to Home Assistant has some issues. I tested with different web browsers (Chrome, Brave & Edge) and different windows computers and got the same behaviour.
For example, If I click on a sensor value, click on parameter icon (top right of window) and then click on the bottom right Update button, the browser move back to an empty page.
No issue on my Android or IOS devices. No issue when using Firefox which is not chromium based.