I had a rev in Kessex Hills when the patch that caused this bug hit and my skill 6-9 disappeared, I however did not crash and could fix it by just reselecting them.I just now brought another lowbie rev to Kessex Hills and around the same spot where on the other rev the skills went poof the same thing happened to this rev, again fixed by just putting the skills back in. Now I'm tempted to make another rev just to test whats gonna happen if I bring it to that same spot.