Specifically in the raid this is an issue since the other game modes are able to successfully end the battle when everyone reaches zero health.
How it goes:
I pull out the gun from her second special. I've noticed that in the turn order thing she'll be shown to have two turns in a row. The first turn I'll click any ability (the abilities show her pre-gun ones rather than her post-gun ones) none of them work. Awkward seconds until the game realises it can't do anything. Second turn pops up, she's stuck in an injured pose but can do her post-gun abilities. ANY kill from that point forward will not die. They stand there at 0 health and don't take turns and cannot be targeted. In other games modes, they'll die when everyone is zero health. In the raid that isn't possible because of Vader, who will be the only one I can target but can't give stacks because all four clones are still technically alive. So I just get stuck unable to progress, and then I have to restart the cycle of praying to not get bad RNG or the bug.
Video is from December, but it looks the exact same now as it did then.