MKV files served as images

[GDragoN]

This started happening today: all MKV files are served to my TV as images. On other devices, it works correctly. I have attached the profile I use, and the FFMPEG information from one of the MKV files. The file information looks fine when compared to the profile, but TV sees the file as an image, and when I try to open it, I get the error.

I also tried to add new profile, but the Mezmo is not seeing it. Is there are a way to force Mezzmo to reload list of available profiles?