Subtitles make file dissapear

Hi guys!
I love your work. However, I have a weird problem. I am using Freebox (a tv box with internet connection which is extremely common in France) to receive the content Serviio streams from my computer. Many of my files, if they have subtitles, don't show up on my tv. I can delete the subs (or rename them), restart the serviio server , and voila, the file is visible again. The moment the subs are there though, it fails to show them on the tv. I checked the servio media browser and the files DO show. So Serviio is definitely seeing them. Anything I can do?
I love your work. However, I have a weird problem. I am using Freebox (a tv box with internet connection which is extremely common in France) to receive the content Serviio streams from my computer. Many of my files, if they have subtitles, don't show up on my tv. I can delete the subs (or rename them), restart the serviio server , and voila, the file is visible again. The moment the subs are there though, it fails to show them on the tv. I checked the servio media browser and the files DO show. So Serviio is definitely seeing them. Anything I can do?