Iron Citadel Boss using multiple attacks simultaneously

Almost every try attacks getting "mixed" in phase 2. Like ice beams from above during his snow storm/fog phase or ice beams while he keeps moving and attacking.

I think this happens if he gets stunned/frozen/armour broken right before he starts with the ice beams.

Also the ice beams and later blood beams seem to deal way more damage then last season. Currently running 2500 life, 76 cold res and about 60% cold dr from armour. Its always a oneshot for me. Blood beams as well dont even inflict bleeding since i instantly die when hit.

I also noticed missing animations for some attacks. Not like the whole animation, but the start. This is not always the case and most time not as problematic as trying to dodge multiple attacks at once, but i have died several times to attacks which havent been telegraphed at all.

Both other Citadel Bosses seem fine to me.