GT-AC5300 media share and Samsung TV

I recently upgraded from a 4TB hard drive to a 10TB hard drive. My 4TB hard drive was formatted in NTFS and I connected it to my router (GT-AC5300) with Media Share ON. For my new drive, I decided to use HFS (Journaled, not Case sensitive) because it simply works a lot better on my Macbook Pro than the NTFS drive.

However, I'm now experiencing an issue with how the drive's contents show up on my Samsung TV via AllShare/media share. If I add a file (via FTP) to a subfolder within the main...

GT-AC5300 media share and Samsung TV