Elder Geode Alva Bug

I just did an Elder Geode T16 map with some special mods. And with all the mods present I spawned an Elreon in my map but for some reason Alva was not present, I full cleared and still did not find her.

Map mods>>

Beyond
Bloodlines
Vulnerability Curse
Frenzy Charge on hit
Cannot be taunted/slowed
Cultists of Kitava

Sextants>>

Abyss
Instant flasks/additional healing monsters
500% enraged strongbox Monsters
Additional Lightning monsters
5% chance for corrupted items

+++ Monstrous treasure proc +++