Incorrect assignment from a QStringList to a char * array

Question

    //This is my partial code.
    
    const char *MyparamValuesTagliando[16] = {nullptr};
    QString RigaDaCaricare;
    QStringList ListaElementiRiga;
    
    const int Destinatario = 0;
    const int Presso = 1;
    const int Toponimo = 2;
    const int Comune = 3;
    const int Cap = 4;
    const int Provincia = 5;
    const int Civico = 6;
    const int RifPratica_NumSinistro = 7;
    const int Note = 8;
    
    //RigaDaCaricare is a line of a .txt file
    //Something like "pippo;pluto;paperino;minni"
    ListaElementiRiga = RigaDaCaricare.split(";");
    
    //Some of the following assignments are OKs (I find the string I'am expecting) others KOs (strange characters)
    MyparamValuesTagliando[2] = ListaElementiRiga.at(Destinatario).toStdString().c_str();
    MyparamValuesTagliando[3] = ListaElementiRiga.at(Toponimo).toStdString().c_str();
    MyparamValuesTagliando[4] = ListaElementiRiga.at(Civico).toStdString().c_str();
    MyparamValuesTagliando[5] = ListaElementiRiga.at(Comune).toStdString().c_str();
    MyparamValuesTagliando[6] = ListaElementiRiga.at(Provincia).toStdString().c_str();
    MyparamValuesTagliando[7] = ListaElementiRiga.at(Cap).toStdString().c_str();

Some of the preceding assignments (ListaElementiRiga -> MyparamValuesTagliando) are OKs (I find the string I'am expecting) others KOs (strange characters).

Can someone help me? Tk.

Please note: split is ok (all elements in ListaElementiRiga are OKs), but only some elements in MyparamValuesTagliando are OKs, others KOs).