Device shows speed when Ignition is off.

Some devices shows some speed like 18 , 34 etc when vechile is in parking and ignition state is off. It shows ignition is off on web view but shows speed like 34. I am using version 5.10
and My xml.configuration is like this:

<entry key='server.timeout'>600</entry> 
<entry key='filter.invalid'>true</entry>
<entry key='filter.zero'>true</entry>
<entry key='event.motion.speedThreshold'>100</entry>
<entry key='report.trip.minimalTripDistance'>500</entry>
<entry key='report.trip.minimalTripDuration'>60</entry>
<entry key='report.trip.minimalParkingDuration'>200</entry>
<entry key='report.trip.minimalNoDataDuration'>300</entry> 
<entry key='status.updateDelay'>300</entry>
<entry key='device.inactiveTimeout'>300</entry>
<entry key='device.resetSpeedAfterTimeout'>true</entry>
<entry key='device.resetIgnitionAfterTimeout'>true</entry>

Please help.

1. Make sure you double check your configuration parameters against the official documentation to confirm that they are valid.
2. Check the raw data and logs to see what's happening to your devices.

Thanks!