When you have some issue with motion detection, please check these settings.

1. Check if you have enabled the motion recording:

NVRiSettingStorageScheduleRecord.png

2. Check if you have enable the motion detection and record channel:

NVRiSettingEventVideoDetectMotionDetect.png

3. Please check if detection time is right:

DetectionTime.jpg

4. Please check if the sensitivity and threshold are set correctly:

SensitivityandThreshold.jpg

5. Ensure Record is enabled:

NVRiSettingStorageRecord.png