Wand of Peace conclusion

[scamp]

For the button puzzle at the end of the Wand of Peace quest in Siambra Dhu, I completed the puzzle correctly but still got teleported into the failed-puzzle fight. Eventually I checked the solution online to make sure it was right.

I'm a bit stuck because I was trying to level by finishing side quests so that I can get past the second Mangar fight.

I honestly don't know how to win this fight.

Played on easy, I don't last more than 4 rounds against these guys.

Currently level 20, patch level: Hotfix 4.2.
Party: 4 fighter tanks, 1 practitioner, 1 rogue

Should the enemies be spawning if the buttons are pressed in the correct order?

[Depili]

They will not spawn with the correct solution. (I still killed them, but you don't get any rewards)