STUCK IN A BOSS FIGHT

Hi,

I am facing Jamnara - Dreadnaught last boss in Cruel Act 2.

after defeating him and emptying his HP bar, there's is no succeeding animation.

Not a hang. I can still walk and do skills but Jamnara is just standing doing his idle moves.

tried logging in and out, switching characters, nothing.

IGN: Kasumuran