Respawning not working for party of 3 (Arbiter of Ash)

We are a three man party and the only one who respawns after the three of us are killed by the Arbiter of Ash is the party leader. We have wasted so far 6 fragments (2 attempts).

Party members:
1. BenitoKing (party leader)
2. Repux
3. Alzamora