Generating Preview for a shared document

Hello, 

I am working on a system where users can submit sharing links from dropbox.  They are also able to preview these shared files.

When a user submits a file: we make a request to t get_sharing_link_metadata endpoint and get the id.
When a user wants to preview the file, we make a request to get_file_preview passing the id of the file.

Recently we had a situation where the shared file is in a personal folder, the file is shared through a sharing link but the folder is not shared with any other user.

When calling get_file_preview with the id of this file, we are gettting a "path not found " error.

- Am I correct in assuming that this because of the folder access right?
- Is there a way around it? an end point for previewing shared links?

Thank you