Sudden death for no reason in Arbitrations

[Aurus_Evander]

What the title says. It happened to me many times now and my friends too, that we are fighting in an arbitration, the first minutes when enemieas are not greatly strong, I usually go with fire chroma, 2nd and 3rd skill on which grants me extra health and armor (a lot, since I have over 300% hability strenght), with full HP and shields, still I suddenly die in a fraction of a second and have to abort mission. No enemy in the mission is able to 1 hit kill me in that situation so it have to be a bug. Please fix this, thank you.