xsl template brings unexpected results with public Italian Trusted Lists EIDAS XML

Question

I am trying to apply a really trivial XSL template to this XML, which is basically an official list of Trusted Service Providers from the Italian government.

I expect this XML has nothing wrong with it.

I would like to extract from this XML, a sub-list of TrustServiceProvider, from the following element

/TrustServiceStatusList/TrustServiceProviderList/

so I tried to apply something like this

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="/">
        <xsl:for-each select="TrustServiceStatusList/TrustServiceProviderList/TrustServiceProvider">
                <xsl:if test="true">
                    <xsl:value-of select="TSPInformation/TSPName/Name"></xsl:value-of>
                </xsl:if>                   
        </xsl:for-each>
   </xsl:template>
</xsl:stylesheet>

and expected this to output all names of the TrustServiceProvider elements, except that it doesn't. The only output is the first line of the XSL template.

Does anyone have a clue about what is going on here??