Game Mechanics: Buffs disappear after zoning

[Fleetwood]

Had a problem today that occurred twice on my lvl 3 Shadow Knight in CB/Gfay.

I was buffed at orc lift, went to CB and got some kills.I had to zone out so I did, but my buffs that had about 25-30 min left on them were gone.
I was then rebuffed and went back in, I continued to kill 8-10 orcs then ran out again at about 30% HP(Give or take). The buffs again were all gone and as far as I know that all that had been reset through zoning.

In game name is Outkazt, gonna get back in and see what happens.