Hi , Had the same problem and nothing worked via the configuration manu .
edited the file and removed 3rd line , problem was solved.
dont really need the folio reference as my components are labeled as their position anyway .

        <xrefs>
            <xref slave_label="(%f-%l%c)" delayprefix="" offset="0" powerprefix="" snapto="label" switchprefix="" type="commutator" showpowerctc="true" displayhas="cross" xrefpos="" master_label="%f-%l%c"/>
            <xref slave_label="(%f-%l%c)" delayprefix="" offset="0" powerprefix="" snapto="label" switchprefix="" type="protection" showpowerctc="true" displayhas="cross" xrefpos="" master_label="%f-%l%c"/>
            <xref slave_label="(%f-%l%c)" delayprefix="" offset="0" powerprefix="" snapto="label" switchprefix="" type="coil" showpowerctc="true" displayhas="cross" xrefpos="" master_label="%f-%l%c"/>
        </xrefs>