Same problem. After he enter his APO form he cant be defeated and he stop attack

I've had this issue for days as well. Very annoying. It always happens in the second phase and when he's changed form for a second time.

Here's a Reddit post regarding it: https://www.reddit.com/r/Wolcen/comments/f74xlz/hemlock_fight_bug/

Same issue here as well. Have been dot build which obviously didn't work at all. Switched to a different build (which is much slower and weaker) trying to work around it but it's even extremely touchy with direct damage. After 10+ failed attempts (due bug, not death), I'll be waiting for a fix ... which hopefully comes very soon.

j'approuve se qui a été dit j ai eu le même problème , quand ont prend sa forme d'apocalypse en phase 2 sa plante boss invinsible et il se pass plus rien sur la map ( plus de monstre plus de sort rien )

je rencontre le même probléme , donc plus de possibilité de continuer ce jeu , si un correctif n'est pas appliqué rapidement je demanderai le remboursement, c'est dommage il me plaisait bien mais pas possible d'y jouer donc pourquoi le gardé ?!

Good to know I'm not the only one having this bloody issue. Also good to know, that keeping trying is but a waste of time...
On the other hand, it's a bloody bad news as it means that I will not be able to finish the story line for some time. Quite disappointing, if you ask me, isn't it?
I think I'll just play some other games until it is fixed, then... -.-

Same for me, quite annoying indeed, we can't play this game anymore !! please fix it quickly !!

Working solutions for this (yet unpatched) issue:

https://wolcengame.com/forum/bugs-issues/bug-reports/push-fix-for-the-act-3-invulnerable-boss-bug/

https://wolcengame.com/forum/bugs-issues/bug-reports/heimlock-bug-stuck-solved-proof-inside/#heimlock-bug-stuck-solved-proof-inside-2EgP