That can only happen if she switched programs. Either from hitting the program button on the light itself or on the app. If color or intensity is changed manually, it will revert back to the program after set time. I've used that quite a few times myself.
I don't know what she did exactly but I would have sent Kessil an email if that indeed that happened.
I don't know what she did exactly but I would have sent Kessil an email if that indeed that happened.