UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.41 Safari/537.36

Example URL:
http://i.imgur.com/vFQf4Mw.gifv

Steps to reproduce the problem:
1. Try to play any YouTube video and the top part of the video will have what appear to be black artifacts for a few seconds.
2. Visit provided link to animated gif and the black artifacts take up the majority of the image until it has played halfway

What is the expected behavior?
No black artifacts are produced during video or gif playback

What went wrong?
Black artifacts are produced during video or gif playback

Did this work before? Yes A few beta versions ago

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? Yes

Chrome version: 54.0.2840.41  Channel: beta
OS Version: 10.0
Flash Version: Shockwave Flash 23.0 r0