[Alan Anderson]

What is LeftStick? It doesn't appear to have a value. Without a proper USB# there when you run the code, I think the Joystick Open will fail.

Note that changing the value of the control after the vi is running will do nothing helpful. The Joystick Open has already been executed, and the invalid reference being fed to the Joystick Get will not change.

Either replace the control with a constant and set it appropriately, or set the control to the right value and choose "make default" before you run the vi.