Bug 31123 add code in XSLT files for results and details pages OPAC and staff interface. Looks like those 4 displays are different, they use $a and $u then call subfieldSelect with different values : koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl: <xsl:with-param name="codes">bcdefghijklmnopqrstvwxyz</xsl:with-param> koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetResults.xsl: <xsl:with-param name="codes">abcdefgijklnou</xsl:with-param> koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl: <xsl:with-param name="codes">bcdefghijklmnopqrstvwyz</xsl:with-param> koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACResults.xsl: <xsl:with-param name="codes">bcdefghijklmnopqrstvwyz</xsl:with-param> Using $a and $u is a mistake since they are displayed in above code. In Bug 36370 I used code from MARC21slim2intranetDetail.xsl : bcdefghijklmnopqrstvwxyz Looks like it is the better one. Also makes sens to create a template in MARC21slimUtils.xsl