Jarvan Passive Bug
For Jarvan 4's passive (Martial Cadence that deals bonus damage of 10% enemies health on first auto) there is a bug.
Recently in-game whenever Jarvan would go to auto attack and use his passive on minions, champions, and enemy units the passive animation would not play. This resulted in Jarvan freezing for a brief moment. On top of that as well the passive damage didn't apply as well, just the regular base damage.
I hope I brought this bug to your attention, unfortunately I don't have the resources to get a clip of this or anything to show it in game.
Thank you for your time.