When a query can not be performed, the Detached View window freezes and  is shaded with a light red transparent overlay indicating that an error was encountered.

A pale yellow Alert box also appears, detailing the cause of the error, and if possible providing information on how to solve the problem.

You need to click on the OK button to close the Alert box, unfreeze the window and resume working.

In the above example, the query was launched with no data in the Airspace search field - while it is a mandatory field which must contain at least 1 alphabetic or numeric character.

Loading data - Waiting time

Some queries can put a significantly heavy load on the Portal server, requiring some time to be processed and displayed back in your browser.

To provide a strong visual clue that your computer is indeed waiting for a response from the server and not simply frozen, the classical hourglass pointer has been replaced with a light indigo transparent overlay, telling you that your query is being processed:

For some queries requesting even more computing time, the blue overlay turns gray and comes along with a message indicating the process status: