Problem with MKV's?

[Manco]

After being stuck on SB64 and not being able to use any builds for PMS /UMS after SB64 I seem to be able to use UMS 2.6.5. Everything works except mkv files. I use and handbrake to encode them and have never had any issues in the past.

The files seem like they're going to play the screen goes black then nothing. The UMS status screen says "serving <MOVIE TITLE>" but nothing. With every file the buffer goes up to 81MB then stops.

Any ideas?

[Bizbear]

Maybe the renderer recognize by UMS is not excatly your renderer so transcoding/remux/stream is not supported by your renderer
Be more accurate whith your trouble (Renderer use by UMS, real renderer, log file in trace mode etc...)