My motion trigger video freeze at the 20sec marker of a playback. It works when it does go pass the 20sec marker. for example if the video plays at 12:20:15 am the video will freeze once it hits 12:20:20am. I have two camera, a Dahua and Hikvision. They both does the same. Im not sure if it is a setting of my recording. Also my computer CPU is not a 100% when this happens. Any one have had this problem before.