Screenshot captured returns black image

Hi All,

I implement functionality where if execution of test case throws any error, it capture screen shot of application at that state.

I am capturing screenshot using following code.
`Desktop.TakeScreenshot( File Path with extension, System.Drawing.Imaging.ImageFormat.Png)

But in result, it save a black image, and not actual screen shot of application.

Any suggestion on what to do here?

I am seeing the same when my tests run in Github, it does capture the screenshot and saves it in the correct folder but they are black

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