Garmin Edge 1040 start itself at home since last update 28.20

Hi,

Since the last update 28.20, my gardmin edge 1040 start itself at home 

I have the since autostart setting at ON when speed is over 10PKH when I ride my bike. Before the update it does not start by itself at home.
But since the update, it did start by itself. I seems to detect the GPS movement of the satellite.

Do you known how to make the device not start when not riding but I want to keep my setting to AutoStart ?

Thanks !