Even the most basic automation is ridden with bugs. After I set up a schedule to turn a lightbulb on and off everyday at the same time, the lightbulb randomly changes to a standard color temperature and brightness, usually at midnight. It's hella annoying when you're sleeping and your soothing dim red light turns into a bright white light for no reason. The schedule routine should allow to preserve previous color/brightness/temperature setting or to choose a new setting.