I use flow with a desktop and two different laptops. The laptops are not used at the same time. The laptops use a docking station which has the Bolt device (both laptops use the same Bolt device) When switching laptops flow does not work initially. I have to launch Options +, choose the mouse and Flow. The laptop will be greyed out but if I press the choice to connect a computer it stops being greyed out and from there works as expected.