When clicking on a public file in File Storage to share the file, it gives the same URL for all files regardless of the folder they are stored in. In this case, the URL links to the first file in the root folder of File Storage. This began happening when Smarter Mail was upgraded to 16.x and only appears to happen with files that were stored before the upgrade (We've tested this by uploading new files and they all give different / correct URL's for the file.)