Morg Interactions with multi-stage CC and Zoe's E (The Game Disagrees With CertainlyT)
The Zoe interaction comes at the end.
Note that Morgana's shield displays "spell immune" even as she gets stunned anyway. Further, the debuff for 'drowsy' goes away and is replaced with a new debuff, presumably 'sleep', implying they are two separate effects. This implies Black Shield should stop the second effect from taking place as long as it is up. Everything about this interaction at the end of this video points to intentionally coding this differently than every other similar ability interaction in the game. The game itself lets you know you shouldn't be getting cc'd and how bs it is that you are anyway. When you're done making money off your new shiny bauble, riot, please fix this.