Hey,
Rogues have a huge problem right now.
When you are on the LEFT side of the mob, your dont get energy reg from Rupture. You will see the +Energy in your Addons, but your energy bar wont increase. You can test it.
We just did Karazhan, and our rogue didnt receive energy on the LEFT side of the mob (when you stand behind him). On the right side and in front of the boss, everything was fine!
Not sure if its a Kara only thing. On the Target Dummy, everything seems to work fine.
Anyone got any ideas?