Productivity
Occasionally we get complaints that the WaitForVisible steps in Test Studio don't work correctly. Our response is "It's not our fault!" Here's what I mean: the Visibility check relies on the Computed Style of the element as seen through the lens of the browser. Specifically we look at the Display property. Here's a video of me using the Google Developer tool to determine the visibility property of an HTML element. Display:none means element is not visible. So it might be that your browser of choice is not very good at determining the visibility factor. Personally I recommend that ...