I have been having an issue with a similar thing (RadAjaxLoadingPanel stays on forever), but ONLY in DEBUG mode. If I run the application normally (non-debug) the loading panels work correctly (i.e. they don't stay ON).
Anybody have any idea why this would happen in debug and not go away?
This is becoming a pretty serious issue, because if I click around enough, my entire page is filled with loading panels and I can't actually get to much of my page.
I have a pretty complicated app with a series of user controls (within other user controls) and a number of ajaxRequests going on, but can't pinpoint why this happens to me... and only in debug. But, like I said... It makes it so I can't actually debug anything because they pop up and stay on everywhere.
All my panels are defined like this: