Audio sync problems

Hello all,

I’m having troubles with the audio sync and I’m wondering if anyone else has this. I’m using the latest version (2.3.1). Here are my settings:

    <channel>
        <video-mode>PAL</video-mode>
        <consumers>
          <decklink>
            <device>2</device>
            <key-device>device + 1</key-device>
            <embedded-audio>true</embedded-audio>
            <latency>default</latency>
            <keyer>external</keyer>
            <key-only>false</key-only>
            <buffer-depth>4</buffer-depth>
            <custom-allocator>false</custom-allocator>
          </decklink>
        </consumers>
    </channel>

And this is a video file that gives me issues:

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