X-post from reddit, Sharing media headaches: Samba won't show "new?" media, and can't figure out multiple user auth in NFS. SFTP on Windows? Help...
EDIT: This has been solved!! This link has the full post, but basically you need to ensure SELinux flags are set for every file, and this won't happen to new files added. I have appended the SELinux option as a context entry to my fstab and now every file shows!...