I have a motion sensor switch which randomly turns on at intervals of minutes up to an hour or so. It is a single-pole application switching on three ceiling lights with integrated LEDs. Note that: 1) I have thoroughly covered the sensor area with black electrical tape 2) I have tried three switches, model #s MS-OPS2 and MS-OPS5M; the same issue happens with each 3) When the switches are set to vacancy mode (i.e., they are set to only turn on when the physical switch is pressed) this issue does not occurAny idea what could be causing this? Thanks,Chris