@richpriest Which part is damaged? I can't quite imagine the scene. Why not contact the support directly to proceed warranty?

@RickMeister First they're not 3-way switches, which means no traveler line. Second, i don't think one traveler line can be left alone in a 3-way circuit.

@D-AB As the owner of a set of smart home device, personally i prefer managing them through the APP rather than receiving email notifications. Too many email can be exhausting and may lead to missing...

@TL_User_ZA It's probably a new feature added by firmware updates, which doesn't exists at the beginning.

@Ghost_1200 Check this discussion on reddit, seems like a Google display issue. Hope it helps.

@DeltaCharlie Found a discussion here, non-resistive devices are likely to have an instantaneous high voltage (or current?) causing damage to the relay....