Three Jayce Bugs
Bug one: Auto attack take longer when your passive is up. This happens in melee and ranged forms. http://gfycat.com/FantasticArcticIlsamochadegu
Bug two: Jayce's hammer no longer has animations. This affects all skins. http://gfycat.com/GrimyKnobbyGraywolf http://gfycat.com/QualifiedRealKagu
Bug three: Full Metal Jayce no longer has a voice filter. No video is needed to show off this bug.