Firmware 2.02.32 Not playing all mp4 files

WD Legacy Products WD TV Live Streaming
117

Trick on page 9 with ffmpeg rock solid. After it my mp4 files becomes playable again on wd tv.

ffmpeg -i file.mp4 -map_metadata -1 -map_chapters -1 -c:v copy -c:a copy file.FIXED.mp4