When you import files and folders in a Team Folder or a Secured Folder, the transfer of the ownership is not made instantly. Google Drive can take up to 5 seconds per document or folder to transfer the ownership.
Learn more here: Add files and folders to your Team Folder
If the ownership transfer is not yet effective, you can see the button “Ownership status” displayed (1). By clicking on it, AODocs will take the ownership of the document or the folder after few seconds.
Forcing the ownership transfer
If some documents do not appear in the Google Drive interface after an import operation, the library administrator can fix this issue from the AODocs interface.
Learn more here: Find the missing imported documents from the AODocs interface