I was killing buzz saws and I got two orbs. Unfortunetly, the counter still showed 0.
I stayed for an hour more in zOMG thinking it's just frozen, but when I came to the null chamber I couldn't upgrade any rings because it still said I had 0 orbs. Logging out and then in after a fewminutes didn't help, but the next morning I had 14 orbs and was able to upgrade my rings.
Later this happened a few times more, so I was forced to seek out the bug report. It's lucky I saw this topic before opening another x_x'
Anyway, thank you for opening the thread, I hope my little imput may help some.
--- Small edit I found important to make...
I checked the loot tab at the time to make sure I had the orbs, it did not display them until the next morning, when the counter did too.
The area I was in when fighting was across the bridge that's next to logan (to be specific, the first area to your left when you cross it.)