I’ve has this happen quite regularly recently. System is set to its “off” state, but cams can be individually put into a semi-on state that results in the shutter open/close (clicking noise). No footage is recorded to the HomeBase. I’m thinking that there’s a security hole that allows some instructions to be sent to individual cams. This is worth looking into, particularly given the recent cloud/DOS issues Anker/Eufy experienced recently.