Monitor not detecting movement

Our monitor isn’t detecting movement once my baby is in bed. It used to all the time before I renewed our subscription. But I hardly get any videos or activity now. My son is in a toddler bed and moves very close to the edge sometimes, so I want to know when he gets up or has moved significantly. He will get up and turn his whole body around at night but the nanit won’t capture it.

anyone else having these issues?