Issues with Sonoff SNZB-03 motion sensor

hi,

I have a different problem with the SNZB-03 sensor…
This one I dont know if we can solve.

I installed it in a couple of my bedrooms, and then the occupants started complaining of flashing lights in the night… and I do see that there is a LED that flashes once a while…

I understand for pairing we need something, that pairing LED can probably flash from the back side, but in the front !!! Cant they use a IR LED ?

Anyone has solved this problem… HA or no HA I cannot use this sensor…

G