Hello Greg,
Looking at the ruler at the bottom of your screenshot, it looks like the geometry has somehow been scaled up by a factor of 1000 - the ruler is showing 200,000 metres, but I guess it should be 200 metres. This might also be why SpaceClaim is not working properly.
The discs will be drawn at their defined size, so if this is on the order of metres, they are simply too small (relatively) to be visible in the graphical window. Similarly, the mooring lines are drawn at a default size of 1.2 metres.
Cheers, Mike
You are navigating away from the AIS Discovery experience