Can someone tell me why i can favorite any videos on youtube for my iPhone 4S?
You'll have to be signed in... And yeah could be a glitch because I was sighed in too and well I favorite a video and didn't display so... It could be a glitch
Maybe check to see you are signed in!
if it doesn't work, then you might need to check if you are signed in or make a account(if you don't have 1)