It seems that my berserker affix does not stun enemies, eventhough I have 75% Attack Speed [Epiphany(5)]. I tried removing Epiphany Affix but still NO STUN. Help, I tried searching for berserker Bugs and I didnt find any so, 
Hey Hiro! Going to check it. Thanks for the bug report. Noted. 
Thank you! I really appreciate how fast your team’s responses are, and the supports are really good. One of the best games Ive played. Thank you so much and GodSpeed. 