Justr tried installing HS200 for my front outdoor light but having an issue.  Same gang box has a 3-way switch for inside lights too and looks like the live wire runs from one to the other.  If the inside lights are off then the front light (HS200 control) works fine but once I turn on the inside lights then the front light flashes and the HS200 makes a clicking sound. Each set of lights works fine when the other is off but when both turn on there's an issue.  How to resolve? Do I need to but a control that doesn't have a neutral wire? Thanks for any help.