We’re back in action: uploads are processing normally, and videos are playing without errors (on both YouTube and YouTube TV). This may have also affected some profile images and community posts–all are now back to normal. Thank you, thank you, THANK YOU for all of your reports!https://twitter.com/TeamYouTube/status/1105683078419120128 …
Sorry to hear that. You should be able to disable subtitles by following steps here: https://goo.gl/sh4mPM . Unless the subtitles are burnt into the video, as the creator has intended that way, it can be disabled. Let us know if this helps.