Hi, I don't have a 327L yet, but on a hunch, you might try using the Ajaxplorer Addon, and reboot your NAS. I discovered this little trick on an older Dlink model. Other little tricks, create a subfolder and cut and paste some of the problem files into it. Then check to see if they show up in the media share, if cutting doesn't work, try copying, and if either works copy the files back to where you want them and check again. Just use a couple files to do the test. I know none of this should be necessary or make sense, but what have you got to loose? Good luck