When multishot goes wrong

A few of Sony's shooting modes use multishot processing, in which the camera consecutively takes several shots and then combines them into one, which, depending on the mode, will do things like improve noise or exposure. However, it does not work well when the subject or the user moves.

In this case, I had the lens fully extended to 500mm and my hand moved slightly, which messed up the processing, resulting in a lot of blocky artifacts.