For some reason, Maxthon 4.9 has changed Youtube playback and seems somewhat more incompatible with the aforementioned site. This issue is existant in all versions of the 4.9 branch, yet works like it should in as well as current versions of Firefox and Chrome. My issue in particular is video quality playback, I can only select between 360p and 720p on videos I have uploaded after February 16, 2016. Around the time the issue occured I tested various videos and found a lack of quality