Dynamo Script not working in Dynamo studio 2017

Hi I’m new to Dynamo. My aim is to use it for Robot structural analysis. I installed the Structural Analysis package. I started a basic script to draw four points. The points are not showing in the 3D space. Does someone know why this is so? See attached image

Try drawing a sphere at each point and see if it displays. may just be that your resolution is causing an issue somehow.

Also, try toggling your geometry scale setting as that might help.

I added spheres still not working. Not sure what is going on.

Does it run fine in Dynamo a Sandbox?