Midgardsormr boss fight bug

Time: Around 2pm CST today
Frequency: Only once (so far)
World name: Brynhildr
Character name: Frodaddy Mcmeatypunch
NPC name: Magitek Field Generator
Monster name: N/A
Class/Level: Monk/50 (i112)
Party or solo: Light Party
In-game time: Cannot remember
Area and coordinates: Keeper of the Lake, Midgardsormr battle
Steps:
1. Defeated first dragon
2. When the add is spawned while fighting the second dragon, killed it with Howling Fist.
3. Activated Field Generator after ADD dies
4. Field Generator disappears without putting up a shield
5. Party wiped by Animadiversion.

Video: https://www.youtube.com/watch?v=GuEpmxz5m-I

While that certainly looks like a bug to me, your UI really bothers me. Lol
You've not changed one thing!
O.O