Thanks for reaching out. We've just checked the video on both the platforms and it looks fine from our end. What device are you on? Also, let us know if signing out, restarting and signing back in helps in fixing the issue.
Got it. Please send a feedback report directly from YouTube with these steps: https://goo.gl/WdI0BK . While every report may not get a direct response, we review everything and use the details to investigate and fix issues.