[xep-support] block containers and columns

Hi everyone :)

My first post and I'm a noob with xsl-fo so this is likely to be an
obvious answer I've just not been able to see :)

I'm trying to generate layout for labels and have setup an A4 page
with 2 columns and then a block-container for each label, expecting
the containers to flow down column one, then down column two of each
page before then moving onto a new page.

The xsl is here:

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform
" xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:rx="http://www.renderx.com/XSL/Extensions
">
        <xsl:output method="xml" version="1.0" encoding="ISO-8859-1"/>
                
        <xsl:template match="/labels">
                <fo:root>
                        <fo:layout-master-set>
                                <fo:simple-page-master master-name="A4" page-width="210mm" page-
height="296mm" margin-left="2mm" margin-right="2mm" margin-top="8mm"
margin-bottom="8mm" >
                                        <fo:region-body region-name="labelBody" margin-top="0mm" margin-
bottom="0mm" column-count="2" column-gap="0px"/>
                                </fo:simple-page-master>
                        </fo:layout-master-set>

                        <fo:page-sequence master-reference="A4" force-page-count="no-force">
                                <fo:flow flow-name="labelBody">
                                        <xsl:apply-templates select="/labels/label" />
                                </fo:flow>
                        </fo:page-sequence>

                </fo:root>
        </xsl:template>
        
        <xsl:template match="/labels/label">
                <fo:block-container font-family="sans-serif" font-size="16pt"
height="50mm" text-align="center" padding="10mm" display-
align="center" margin="0pt" background-color="blue" keep-
together.within-column="always" break-after="auto">
                        <fo:block margin="1mm"><xsl:value-of select="./line1" /></fo:block>
                        <fo:block margin="1mm"><xsl:value-of select="./line2" /></fo:block>
                        <fo:block margin="1mm"><xsl:value-of select="./line3" /></fo:block>
                        <fo:block margin="1mm"><xsl:value-of select="./line4" /></fo:block>
                </fo:block-container>
        </xsl:template>
                
</xsl:stylesheet>

The blue background on the containers is just to help show what is
going on :)

And an example of the xml expected is:

<labels>
        <label>
                <line1>Birmingham</line1>
                <line2>SS08 Kids Int</line2>
                <line3>Pack 1/1</line3>
                <line4>International</line4>
        </label>
</labels>

Just repeat the <label> node to generate multiple labels.

The problem is that, while on the last page everything behaves as
expected, on every other proceeding page XEP only fills the first
column.

Can someone please tell me what I'm missing and why this is happening?

Thanks!
Robert

---
Robert Goldsmith
Systems Integrator
SP Group
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