XSL-FO - Region-Body overflowing into Region-After

<fo:simple-page-master master-name="body"
page-height="29.7cm"
page-width="21cm"
margin-top="1.5cm"
margin-bottom="1.5cm"
margin-left="2.5cm"
margin-right="2.5cm">
<fo:region-body margin-top="2cm"/>
<fo:region-before extent="3cm"/>
<fo:region-after extent="1cm"/>
</fo:simple-page-master>
</fo:layout-master-set>

<fo:page-sequence master-reference="body" >
<fo:static-content flow-name="xsl-region-before">
<fo:block text-align="end"
font-size="14pt"
color="grey"
line-height="14pt">
Consultations
</fo:block>
</fo:static-content>
<fo:static-content flow-name="xsl-region-after">
<fo:block text-align="center"
font-size="10pt"
line-height="14pt" >
<fo:page-number/>
</fo:block>
</fo:static-content>
<fo:flow flow-name="xsl-region-body">
<xsl:apply-templates select="publications/Items/Item">
<xsl:sort select="name" order="ascending"/>
</xsl:apply-templates>
</fo:flow>
</fo:page-sequence>