The 622GW is recording a protected file. When the 'Protect' function is activated a file containing 15 seconds prior to the incident and 30 seconds after is written to the Protected folder (a total of a 45 second clip). The Protected Files are recorded for three different reasons:
1. The G-Sensor on the camera automatically protects the footage when unusual G-force is detected. You can adjust how sensitive the G-Sensor is within the camera's settings:
A) Turn the Dash Cam on
B) Ensure it is not recording (by pressing the red circle if required)
C) Go into Settings (the button in the top left)
D) Go into Video settings
E) Scroll across to ‘G-Sensor’
F) Change this to Medium, or Low.
2. The Protect Button is pressed (the Nextbase button under the screen).
3. Parking Mode footage.
It's very likely that your Protected Footage is being recorded due to the G-sensor if you have not touched the camera. I hope this helps.