Check The Following :
1) Make sure at least 2 people is at the room you want to glitch :3 (including you o.O)
2) Make sure you delete remaining Scroll of Pangs in you Inventory before repurchasing and relogging .
3) Since you mentioned you're using stonecrusher, Use your last skill for DoT and activate Pangs, (Make Sure you survive the whole duration of DoT ticking)
Pangs alone wont get to crazy DoT Ticks, Needs to stack with other DoT skills like the ones from BB, Archpaladin , Stone Crusher, etc ,etc. . Just "MAKE SURE" you "SURVIVE"