Cant progress with the game as the final boss bugs out on 2nd or 3rd phase of the fight,since the Boss froze the first time in phase 3 i havent been able to pass phase 2 before he bugs out.

Phase 1 is fine.

game settings, skills, tree and items shown to help debug.

Someone has recommended a Possible fix which i havent tried yet, would rather it get fixed in a patch :/
https://wolcengame.com/forum/bugs-issues/bug-reports/act-3-boss-possible-workaround/

youtube vid link of the issue with all my settings : https://youtu.be/aP3cKBkM3cI

Video Link of latest patch and boss fight - Successssss!!!!!!
https://youtu.be/gH8wiBm8rKM

GeForce GTX 1080 TI
16GB Ram
i7-8700K @ 3.70GHz
64 bit windows 10 Pro
Samsung SSD 840 EVO 250GB (game installation here)