Missng last lines when read file wth readLine()

[aguayro]

Hi, i'm trying to read a entire file:

QFile lista(path);
    if(!lista.open(QFile::ReadOnly))
    {
        QMessageBox msgBox;
        msgBox.setText(tr("Could not open file.(2)"));
        msgBox.setStandardButtons(QMessageBox::Ok);
        msgBox.exec();
    } else {
    QTextStream strim(&lista);
 
    while(!lista.atEnd()) {
        qDebug() << strim.readLine();
     }
    }
    lista.close();

QFile lista(path);
    if(!lista.open(QFile::ReadOnly))
    {
        QMessageBox msgBox;
        msgBox.setText(tr("Could not open file.(2)"));
        msgBox.setStandardButtons(QMessageBox::Ok);
        msgBox.exec();
    } else {
    QTextStream strim(&lista);

    while(!lista.atEnd()) {
        qDebug() << strim.readLine();
     }
    }
    lista.close();

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But i can't read the last lines, it never read the last lines of files, sometimes 50, sometimes 100,.....

What can be wrong??