I've won the battle against the bandit leader twice, it plays the dialogue of get away from me, my character then auto moves reaches the sparkly bit in the middle of the floor, and then the game won't let me do anything else, (audio still playing won't let me do anything other than f5)
This is actually an issue regarding the skip mechanic, which isn't working properly towards the movement route if I'm not wrong. I'm going to ask first if the vex character are in it's proper position first (in front of the player) or does it somehow bugged in the table. If it's the later, then it might be the reason of the softlocked. Try not to skip in the opening scene of the boss battle and see if it works.