Kagami knows who Ladybug is
I just realised in episode Protection in this scene when Kagami was being manipulated by Lila about Marinette, we see Kagami holding the lucky charm. What if it was a hint that she knows she is Ladybug. she holds the 2 things Marinette has ever given her.. But is also possible she holding it because she feeling sad and doesn't want to be akumatized.
We found out in Episode Representation that in episode Perfection Episode 12 is when Kagami finds out who Marinette is. Protection is episode 16.
And this explains why she didn't want the lucky charm from her. Also it never stopped her from being akumatized.












