I have the same issue since I updated YouTube last week.Since then I am not seeing any savings using opera max.I have tried to keep the video quality at "auto", but it changes to 480p.Infact,earlier today when I used YouTube for an hour,it consumed 1gb of data and the savings was negligible at 20kbs.Earlier,if I used YouTube for an hour,the savings will be in the region of 300-400mb.I hope you guys will work this out quickly so that I will be able to use YouTube without the anxiety of my data allowance getting busted