When streaming MKV files (both those that have been pre-transcoded and those that transcode whilst streaming) to my Sony BDP-S770 blu-ray player, fast-fowarding the movies no longer works.

The total run-time for all MKV movies is now listed as 1 second. MPEG movies still display the total run-time correctly.

The movie will play normally, with the time elapsed displayed correctly. But as soon as I try to fast-forward, the movie stops and goes back to the menu.

This has only just become an issue - I've not had any problems fast-fowarding any file format since I started using Mezzmo a year ago.

I've tried re-installing, changing all types of settings, etc. but nothing seems to work.