Porjection missed selected objects

I am working on a topography/site model in Rhino, and I was able to project objects on the topography yesterday. Today, the project command doesnt work in the same file where it worked yesterday! I looked up various discussions regarding this issue, and tried them all, however I still am not able to project objects on the surface in my model. Any new insights on this command error would be appreciated. Thank you,

Hello - keep in mind that by default, Project uses the current construction plane (CPlane) normal to get the projection direction. So the view in which you run the command makes a difference.