Same thing with the Agent load-in with the combat pose but gun unequipped. I'm so used to the sabers disappearing for our toons when we destroy any node while in combat, and our companions' weapons disappearing altogether for no reason, I probably wouldn't notice if the sabers were disappearing for other reasons.
Brings back memories of the KOTOR 2 final fight. They're either disappeared or stuck in an awkward pose of loading/animation before you attack them. At least our characters are not disappearing yet and only showing the lightsaber(s), as you can see in the galaxy with NPCs wielding sabers.