Lately I've been having problems getting orbs. I see them around everywhere and run into them so I can replenish my mana or health but a lot of the time nowadays they do nothing. They just float through me like I have full health or mana, which I don't. It makes it really frustrating when there's only one orb around and it won't work.
That happens when you lag, well at least for me.. When that happens to me, I've rather play a mini game to get my mana/health back. You could also run around all cray cray like trying to beat the lag! But I have a problem with getting mana/health whips, it'll spin around my Avatar as if I collected it, but it doesn't give me any mana/health. This only happens every once in a while (to me).