Same here,,,just started yesterday...was on Hardcore and just started Infernal...got to the first witch and kill then freeze,,,I think it might have to do with the overmoded stats...I thought that it was cause I just upgraded to lvl 60 gear...started a new character and got to Act 2 and going okay then in the first waterway/sewer level walk three steps and freeze....same place 3 times...gonna try a fresh no mode and see how far I get...