Gamebreaking bug with duriel lair fight. (HC)

Hello, me and my friends and partner have been playing pretty much all weekend now, we play HC. We tried duriel on Torment 1 today, and appearently we killed him to fast so he never dug himself down and phased, so he just kept healing the damage he took and couldnt die, we had to scroll of escape. Then i tried to do it solo (im a spiritborn) I went down to do him on Torment 1, and i cant really kill fast so i thought it was gonna be okay. It took me a while to kill his adds but he never got out of his digging phase, thus made me stuck with him cause he kept just digging and never phasing. Only reason i survived was cause one of my friends invited me so i could tp to him…

This season is EXTREMELY BUGGY. Get it together. I could probably write a list on bugs, but the lair bosses ones are the WORST so far, with Andariel having a similar bug of never phasing. I’ve yet to try Mephisto or Urivar yet i dont know if i want to at this rate.