Dlna ogg vorbis playback freeze

[kemenyadi]

I have a MMW dlna server running with auto convert enabled (to ogg vorbis). The server itself works because I can play back files on MMA, other android clients, and MMW 5. However, on MMW 4 the library shows up fine, but when trying to play back these auto converted ogg files the program freezes (non converted mp3 files do not freeze and work fine).
I'm using 4.1.27.1897 for both client and server.