Collaborative Designer for CATIA Magic problems

Hey guys,

a question about the Collaborative designer for Catia Magic:

When trying to take a look at the Model which is integrated into the 3DExperience through the Collaborative designer for Catia Magic, the Model appears to be completely empty, even if viewing the latest revision. Inserting the same Model as a file through the Bookmarks app, the Platform is able to read and display it. Why is that and what am I doing wrong?

Also, in the bookmark editor I want to set the System Model to a new revision. But as soon as I choose the Model, the option to set to latest revision disappears. Do you guys know why?

In that menu, you usually see the option "Replace by Revision". But it is not enabled for System Models integrated through Collaborative Designer as it seems... 

Would really love some help. Cheers