The default value does not swipe pictures. The frame displays the last picture received. You can swipe the screen with your fingers.
If after 48 hours (adjustable setting by distance) there was no new picture, the frame will initiate an automatic scrolling by displaying a random picture among the previous pictures, 1 photo every 4 hours. (you can adjust the settings).
These settings can be adjusted from the frame’s settings, on the web interface or on the mobile app.