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Date & Time: 04/30/21 15:07 pm ST
Frequency: Everytime
World name: Chaos
Character name: Raida Sameluck
Retainer name: /
NPC name: /
Monster name: Lamebrix
Class/Level: DRK 80 (synch 70)
Party or solo: Party (happenned in roulette and confirmed bug as duo)
In-game time: 15:07pm ST
Area and coordinates: Breath of the Creator
Housing: /
Steps:
1. Bring to boss to add phase
2. When the add finish its cast, you should be knockbacked behind since it's normal mode.
3. A invisible wall happenned, locks every melee in and it's mandatory death. No dash used/ No anti-kb used either.

In the roulette, we were 4 melees, and 4 melees died on it. We confirmed that problem as duo unsynch with a clip.

Clip 1

Clip 2