I've set waypoints in the past using Andropilot, but it seems that perhaps I've forgotten exactly how to do it or I've inadvertently changed some setting.

I'm using Andropilot 1.6.06 on a Galaxy Note II smart phone.   The phone has a stylus which is handy for precision work.    When I press the stylus on the map, the box that says, (Provisional Waypoint - Altitude 50 Meters), pops up.    A check mark appears on the top left corner of the display.

When I click the check mark, the provisional waypoint box disappears and no waypoint is set.   I can't seem to set any waypoints anywhere.   Also, I can't edit waypoints. 

I have some waypoints that were previously loaded into the APM.  When I connect over the radio, the waypoints appear on the Andropilot display.

On the waypoint screen, when I click on a waypoint, the box highlights..  When I click on the checkmark on the top left of the screen, the highlighting goes out and no editing window opens.  I'm left with the same waypoint screen.

I'm doing this while connected to the APM over a radio link.  Does anyone know what I could be doing wrong?