VU+Duo2 and DolbyDigital output

    I have a problem with audio VU+DUO2, practically i have no optical, no analog, no HDMI audio output in DOLBY DIGITAL mode, also downmix is activated or disabled.
    The sound output work only by setting the MPEG track from audio panel
    The image is BH 2.1.7
    Is possible setting something ??

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