Lavastorm / Solesk's Eye(Sol A) zone line, LS side :
zone line did not activate, allowing me to go to the end of the tunnel ; there I got constant skill-ups for swimming skill, until it capped.
Repeatable, was able to confirm zone non-activation on 4 toons, skill-ups on 3 (fourth was long ago capped; I'm sure it was the only reason he didn't get skill-ups too)
A minor issue, I know, but figured I would let you know