Hi Nick 

Thanks for positing in the Lucidchart Community! Just to make sure I understand the issue you described correctly you have shared a diagram through Google Drive and your collaborators are trying to visualize that diagram directly from their Google Drive using the preview tool? If that is the case I apologize for the misunderstanding – our Google Drive integration was not built around the purpose of allowing collaborators to visualize documents on Google Drive but rather to allow collaborators to open those documents in Lucidchart directly from Google Drive. Your collaborators can access and fully visualize the Lucidchart documents shared via Google Drive by right-clicking the file and selecting “Open With” > “Lucidchart.” For more information please take a look at our Lucidchart in Google Drive article.

Alternatively you can share documents directly from your Lucidchart account via the document editor or via your Documents page. To learn more about those options please review our Collaborate and Share article. 

Hope this helps! And please let me know if I have misunderstood your issue.