MKV files disappear with Serviio v.1.2

Hi, I have the product licensed and I upgrade to v.1.2 but I need to downgrade because all the MKV files disappear in the DLNA devices (Sony BD, Toshiba TV,...) but accesing from web the files are there.
¿suggestions? Thanks in advance

[Illico]

For Sony devices:
- Default profile is "Sony BDP-Sx90 (2012)"
- I have the Sony BDP-S370 model, and I have to manually assign the "Sony BDP-Sx70/SMP-N100 (2010)" profile on serviio console device list, and it works flawlessly.