I’ve seen this recently, and it’s caused by the new local network access restrictions introduced in Chrome 142.
Log Analytics queries run inside an iframe, and Chrome is now blocking part of that request, which is why the popup appears even though everything works in other browsers.
There’s nothing wrong with your workspace or permissions. It’s a browser issue.
Right now the only reliable workaround is to use Edge, Firefox, or Safari until Microsoft updates the Log Analytics iframe to comply with Chrome’s new behavior. Chrome Incognito won’t help because the restriction is built into the browser, not extensions.
This is already a known issue, and Microsoft is working on a fix.