Abyssal mechanic spawned inside boss arena

I had the abyssal crack inside the boss arena and had 2 abyssal rares and 2 bosses (the Iktab/Ekbab fight) at the same time, so I died of course but I had 2+ respawns. However, it remade the whole map and I lost ALL of the ritual sites and the breach I had. I didn't think you lose those on death unless you lose the whole map/run out of respawns.

I would like to add this also occurred to me, an abyssal in a map boss area.

The map was Seepage, area lvl 80, fungus behemoth boss.

This happened to me in an uber boss fight. The one where you're slowed and cannot attack while walking up to the Baraya altar.

I managed to drag the mobs to the door so I could fight them until the arena actually closed and then I was stuck, slowed, unable to attack while the boss spawned in. Ultimately got wiped and lost an uber boss map node.

Please fix this.