Stick up cam gen 3 - Advanced Motion Detection trimming

Hi, I have 3 stick up cams outside and noticed that one of the batteries has been draining considerably, then a second cam started this behaviour. I have noticed that the recordings are not cutting off when motion stops, they run to the maximum recording time that I had set. I have since reduced the recording time to save the strain on the batteries.I have so far turned the advanced motion detection off and on, rebooted the cams, rebooted router, altered sensitivity but nothings help. I haven’t done a power cycle as I need to dig out a ladder, anyone else noticed any issues like this? Thanks, Marc