When deleting a waypoint in the manage waypoints, please remove them from the map.
If I manually create a waypoint (hold->create waypoint) I can then delete it, and it will disappear from the map.
If I go to waypoints->manage, and delete a waypoint, the waypoints will remain on the map. When I exit orux maps completely (kill the process) then restart orux maps, the deleted ones will disappear.
Thanks for the great tool!