Icewind becomes Invincible
Sometimes on the last part of the Icewind fight, she will not fly up, meaning that the ice storm that makes her invincible lasts indefinitely. Had to purposefully die and restart the fight to get it to work properly.

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Arcwolf22546#00358 commented
Lvl 3 using Wulfgar and having lvl 15+ Cattibrie, finished it. Did it on lvl 1 with different CB partner no probs. Just tried a 3man with W, B, and CB and Icewind glitches the last 20%. On difficulty 2.
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Saviour#71588 commented
No matter how many times I wipe, icewind remains invincible. I literally cannot beat this game because of it. I tried at least six times. I fought icewind so much I can literally go the whole fight without getting hit by any of icewinds attacks.
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Drizaxle#44473 commented
I've only seen this a few times but it does occur. Happens immediately after firing the ballista and grounding Icewind. Instead of flying again and destroying the ballista, she simply stays on the ground and blasts you with ice breath until you die/wipe. Playing on PS4.
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Reposter#89412 commented
I had a glitch with Icewind Fight myself just today, I was playing Coop with my partner using Drizzt and I myself using Wulfgar and we were trying level 2 difficulty. When Icewind is reduced to 20% health, she just keeps blasting her Frost breath and is Immune to all damage from My Wulfgar and My Partner's Drizzt.
I tried it twice today. I can defeat Icewind on level 2 on Solo mode though, and did it twice today as well.
https://steamcommunity.com/app/623280/discussions/0/3053989078743115604/
For your info and usage, thanks.