ADMIRAL VALERIUS Stay Invincible

Hey, I just logged in game and got a notice that my ship is being attacked. and that I have to rescue. I don't know how to post image, but I will put a link of this.

I just realized, idk how may minutes, he became invincible for so long. (This invincible thing I knew after reading wiki).

I use RF, DD of Chain + CWS (Cast When Stun), Frost Bomb + Desecrate + CWS, Fire Storm + Flame Surge + CWS, Punishment + CWS. The typical DD Ignite Build.

Aura: Determination, Purity of Fire, Petrified Blood.

Gear is just standard,
Uniques: Cloak of Flame, Valyrium Ring, Dawn Breaker Shield, Defiance of Destiny, Bloodnotch, Immutable Force, Taste of Hate.

Everything else is rare.

I tried searching for thread for this bug. But none... Even this boss is still immortal while I'm writing this. This happened on my "SettlerRFKayynnn" character.

I play on laptop. Specs:
MSI Thin GF63 12VF
I7-12650H 2.30 GHz
16GB RAM
RTX 4060

Recording:
1. First Recording:
https://drive.google.com/file/d/1KPIbgm4dph3HqNnUfGiXOWH2UGK33vwU/view?usp=sharing

2. Second Recording:
https://drive.google.com/file/d/1EqAbEvgYQXNplrwa0eh89-kuzkQbWdov/view?usp=sharing

SS:
https://drive.google.com/file/d/1b5QSLRFAGvG34XymFx_-XGtPqtPobyiJ/view?usp=sharing