7.1 (probably 7.0 as well) custom resource problem

I created a custom resource (Planet)

I have a workflow that ends with the construction of a new planet and if I create a XaaS blueprint that uses this workflow I also get to see that planet in vRA Items

XaaS Blueprint:

item created :-)

However when I add this XaaS Blueprint as a resource into another Blueprint with machines like so:

Then the planet is created in orchestrator, but this time I cannot find that Planet anywhere in items (not in planet, not in 'deployment').  Why?

Kalli