Open up your Microsoft Powerpoint slide, and from the top ribbon, click on "View" > Select "Reading View". Make sure that your powerpoint app is NOT minimized.
Most people who have come across the OBS capture window issue say that they’ve experienced the problem with Google Chrome. The content of their tabs just refuses to show up and is replaced by a black screen.
First, sign up for an account at the website and submit application after you verify your email address