Bull Rancor Glitch

[shower beer]

I'm having an issue with the final battle on Imperial Felucia (in the Rancor Graveyard). Bot Maris and the Bull Rancor don't move. I can hack the Rancor's health down to 0, but since it's a final boss it requires a finisher. I tried activating the finisher, but after initial input the game simply freezes. Has anyone else had this issue? Does anyone have a fix?