Sunwell Plateau - Archonisus, the Third Gate

You should be set, Vazjin. If you or any other member of your party has been inside the instance in the last thirty minutes or so you will need to perform a soft reset for the changes to take affect.

To perform a soft reset, follow these steps:

-Have the entire party/raid exit the instance.
(Please note that players who remain inside the instance, even those who are logged out, will prevent this workaround from functioning as it should)
-Wait at least 30 minutes while every raid member remains outside of the instance.
-Re-enter the instance only after 30 minutes have elapsed.

When you re-enter the instance after completing the soft reset, all scripted events that your raid has not yet completed should now be reset and you should be able to continue raiding where you left off.