Ciao Luca,
that´s correct so far and neither an Navigraph nor a Zibo issue. The reason why this approach is coded as LOC25 is, because the missed approach start prior the runway-threshold. In such situation, Jeppesen codes this as LOC only approach due some ARINC424 coding rules.
… but you can fly this also as an ILS approach in the sim. That´s “only” a real-world limitation 
Hope that helps,
Richard