@Dolphin. Thanks for posting your question. There can be a number of reasons why you may not be seeing subfolders. The primary reason may be that you did not map the subfolder field to the mappings the the listing your are trying to show. Another could be that your folder destination doesn’t contain any subfolders. Another could be that you have not re-synced the files in the subfolders for the listing. Another could be that you have subfolders with no files in them.
The most likely situation is that the subfolder field is not mapped to your listing. Check the mappings and see if you see it or not. You may post a screenshot for assistance, or I can assist you directly with a temp admin login. However, I believe it has to do with the mapping.