To watch the video of a completed Test Execution, click on the Watch Video tab in the Test Results page as shown below:
The Watch Video tab might be invisible right after the Test Execution until the video loads completely. Please refresh the page until the 'Watch Video' tab becomes visible as shown in the above image.
Note: The reason why the Watch Video tab is not available readily is due to the time taken to load the video from the cloud. It might take up to a minute depending on the number of test steps for the Test Execution video to be rendered.