Font fails to render properly

[pgundlach]

<Layout xmlns="urn:speedata.de:2009/publisher/en"
        xmlns:sd="urn:speedata:2009/publisher/functions/en">
Version 4.1.20

  <Trace grid="yes"/>

  <LoadFontfile name="InterRegular" filename="InterRegular.otf" />
  <DefineFontfamily name="inter" fontsize="12" leading="70">
    <Regular fontface="InterRegular"/>
  </DefineFontfamily>

  <Record element="data">
    <PlaceObject>
      <Textblock>
        <Paragraph>
          <Fontface fontfamily="inter">
            <Value>This is a test</Value>
          </Fontface>
        </Paragraph>
      </Textblock>
    </PlaceObject>
  </Record>
</Layout>

yields

[pgundlach]

A sample pdf

publisher-q.pdf