Lord, he is not bugged and he is soloable, but this is a very difficult fight if you don't understand the mechanics. Take out the padawan first and then pull the Jedi Master out of her range so she can't continue healing him. It's the Padawan that heals him, it's not a self-heal... I was fighting him for a long time and almost died until I realized this, once I pulled him to the other end of the room, he stopped getting healed and he went down on my first shot.