That happens frequently on the desktop website YouTube too. It also happens on my Android phone using the native app. Related to that, if you try to scrub to a

That happens frequently on the desktop website YouTube too. It also happens on my Android phone using the native app. Related to that, if you try to scrub to a position BEFORE what you are watching right now (say, 1 minute before), which is obviously buffered since you have just watched it, it goes full loading-retard again. It's like it just throws away the data it buffered and showed you. It is insanely infuriating.