I'm using LeapMotion_CoreAsset_Orion_4.1.5 & UIInputModule-1.2.0 * Unity 5.5.2
When you load the example scene of UIInput Modules you can interact with the canvases in the scene. When you turn the canvas's off and on or move them the canvas's no longer react to the leap hands.
Help me leap motion community - your my only hope!