T8 Reef Boss Nassar Doesnt Phase Change, Unkillable

Entered Reef Map, when I got to boss, he went into whirly water shield and then never changed to the next phase.
I opened the map with 1 Divine Vessel, 1 Sacrifice at Dusk, 1 Ritual Scarab of Selectiveness and fortune favours the brave.
Might be related to the Ritual Scarab without forcing rituals or the Divine Vessel?



https://www.youtube.com/watch?v=AT0D_qEubyQ

guess it didnt like my image https://imgur.com/a/QknQWBU

+1 had the same issue just now. I was afking in the middle and tanking his hits with leech and then noticed after a while that he doesn't take dmg after phasing once or twice and then started to record it.

https://gofile.io/d/iS8V6Q

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Crioll wrote:

Entered Reef Map, when I got to boss, he went into whirly water shield and then never changed to the next phase.
I opened the map with 1 Divine Vessel, 1 Sacrifice at Dusk, 1 Ritual Scarab of Selectiveness and fortune favours the brave.
Might be related to the Ritual Scarab without forcing rituals or the Divine Vessel?

It happened to me as well, exactly as you described at 25%.
I did it as a Kirac breach mission.

Happened to me twice now, wasting map progression ...

Has happened to me twice now as well. Bug report # 390,197,247.

The first time it happened it was a Kirac mission. He became unkillable at about 75% health.

The second time it was my atlas, and had Unique Boss is Possessed. In that case Nassar had "Charlatan's Grip". He became unkillable at about 25% health. In the map overlay it said "5 monsters remain", but I know all but his arena was clear. This number would sometimes jump to a number between 5 -10, then drop again to 5. Never went below 5. I assume this is my minions killing adds.

Both of these happened today, within an hour or less of one another.

Edited to add:

I tried again, and had nearly the same result. But here is some valuable information:

I suspected the spectres were the problem, since I could do some damage until they entered the mix in all cases.

At about 75% health Nassar became unkillable, just as before.

I portaled to my hideout from inside the arena and made sure my Moon Dancer spectres were "banked".

Portaled back to Nassar's arena and as I appeared I could attack enough to remove his energy shield, but nothing else. He was still unkillable.

I convocated my minions around the arena for about 2 minutes, in an attempt to move him and to see if moving the spectres around would make a difference. Still unkillable.

Since I could damage him a small amount before the spectre spells/attacks landed, I decided to remove the spectres altogether from the fight. So I opened my inventory and removed the spectre gem from my armor. Nassar began to take damage almost immediately.

So, I can say with certainty, for me at least, when my Moon Dancer spectres were active, Nassar was somehow invincible. When I "turned them off" his fight progressed as normal as soon as the Moon Dancer effects had faded.