Potential sector 5 boss

Hi I just reached sector 5 on hard conquest today and made it to the first traya boss, now I remember the raid where you take out her lightsabers in order to defeat her. But for someone reason after I do so and she no longer has health she gets her sabers back and wipes my team. I’ve tried every way I could think of, I’ve even tried just a normal full Jabba team to see if maybe it was my roster but still nothing. Maybe there’s something I’m missing or a potential bug.