Leviathan extreme wiping party even with 50+ energy

[Hali]

Thread Title:
Leviathan extreme wiping party even with 50+ energy

ISP:
Telstra

Type of Internet Connection:
ADSL

Internet Connection Speed:
1mbp/s

Date & Time:
30/3/2014 Around 10-11pm GMT

Frequency:
Always

Character Name:
Hali Radilah, Memento Mori, Blue Water, Kool Kat

Race:
Miqo'te F

World:
Excalibur

Class/Level:
Dragoon 50

Area and Coordinates:
The Whorleater Extreme

Party or Solo:
Party
8 members

NPC Name:
None

Monster Name:
Leviathan

In-Game Time:
No clue

Steps:
I'm in a static that has been fighting Leviathan Extreme the past few days, and we've been doing fine, until last night.
During the second Spume phase we would kill the spumes quick enough to have 50+ energy in the Elemental Converter, but when we do activate the converter, we still get hit for 30,000 damage.
We've tried activating the converter earlier and later to have the exact same result each time.
Considering the new ilvl cap is 110 and we're a party of full i90 equipment, this seems like it's more of a bug than we're DPSing Leviathan too hard and pushing him into an enrage state (like with Ifrit Extreme).
Any light on the subject would be greatly appreciated.

Thank you.