[SOLVED] Subtitles won't disable

Hi,
I have a number of MKV files that when played through my Samsung TV play back with subtitles even when subtitles are disabled. If I play them in VLC on my PC I can disable them, if I play the files on my phone via the Serviio uPnP share I can disable and enable them at will (I assume it's not transcoding to my phone).
The TV is set up as a Samsung E/F (UE40ES5500), without any changes to the transcoding profile. Is there anything I can do to find out why it won't stop adding them? It's been happening for the last couple of versions, but currently I am on 1.4.1.2
Thanks
I have a number of MKV files that when played through my Samsung TV play back with subtitles even when subtitles are disabled. If I play them in VLC on my PC I can disable them, if I play the files on my phone via the Serviio uPnP share I can disable and enable them at will (I assume it's not transcoding to my phone).
The TV is set up as a Samsung E/F (UE40ES5500), without any changes to the transcoding profile. Is there anything I can do to find out why it won't stop adding them? It's been happening for the last couple of versions, but currently I am on 1.4.1.2
Thanks