Create a New Station for Unit Test

Hi,
I'm developing a RobotStudio Add-in, and I would like to create some Unit Test.
I'm following the tutorial found in the Developer center

https://developercenter.robotstudio.com/api/robotstudio/articles/How-To/Miscellaneous/CreateNewStationExample.html

I'm able to create a new station, but no graphics are shown.
I have the same issue, if I try to load a station of creating a new one.

What I am missing?

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