UMG Documentation for 4.4 Preview

Mobile with “Get Input Motion State” node

I don’t understand why, but when I add a widget, the “Get Input Motion State” node return anything.

Without the widget, “Get Input Motion State” work fine.

And, when I use the “Virtual Joystick” touch interface, after a touch in the joystick, everything is back to normal. (But normally I don’t use virtual joystick, only Input Motion).