Problems opening saved open studio files with sketchup plugin

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Hi, I decided to try and learn about Open Studio and Energy Plus but this is proving to be an impossible task. Whenever I build a geometry and save as both the sketchup and Open Studio model, when I close and resopen the Sketchup file, it automatically removes the open studio content. I then reopen the Open Studio file and all of the surfaces are missing and all that remains is a wireframe and the options to turn on surface rendering do not work. I have had many other problems with loading in the Open Studio model from Sketchup. I am using Windows 10.

I am wondering if there is a best practice, file management workflow that I should be following because at the moment it is causing many many problems.

Thank you for your help.