Katarina Can't Ult in Legend of the Poro King.
Hey today I was play Legend of the Poro King and I saw a really good oppurtunity to go in and ult the enemy team and maybe get a pentakill. However, to my dismay, I e'ed into the middle of the enemy team and was unable to activate my ult (note: I couldn't even ACTIVATE it, so please don't tell me you can't move during katarina ult, I have lvl 4 mastery). I was confused and didn't know what happened since I had played katarina earlier and been able to ult. I quickly realized I hadn't fed my poro so i fed him. Amazingly, I was able to ult after I fed my poro (with poro snax) but it took me a while to figure that out so I was pretty useless by then and we lost. I think riot should fix this just in case you forget to feed your poro and want to ult when you see a perfect pentakill oppurtunity.
How to replicate bug: Go into a Legend of the Poro King game. Play Katarina. While in game don't feed your poro and get to lvl 6. Once you reach lvl 6 approach an enemy champion and attempt to ult. 10/10 you will be unable to ult until you feed your poro.
I have not yet tested this in ARAM yet but they bug might be an issue there too.