[SOLVED QSQLLITE] Problem retrieving records

[skruffynerherder]

I have a problem retrieving data from a sqllite database, lasterror().text returns with "No query Unable to fetch row", running the query directly in the database gives me no issues and works.

QStringList groups;
    QString SQL =   "SELECT groups.name FROM groups "
                    "INNER JOIN shiptypes ON groups.id = shiptypes.groupid "
                    "INNER JOIN ships ON shiptypes.id = ships.shiptype "
                    "INNER JOIN reports ON ships.id = reports.ship "
                    "INNER JOIN posts ON posts.id = reports.postid "
                    "WHERE posts.stamp = :stamp";
    QSqlQuery groupQuery(connection);
    groupQuery.prepare(SQL);
    groupQuery.bindValue(":stamp",reportKey);
    if (!groupQuery.exec()) {
        errorCode = 510;
        error = true;
        errorMessage = groupQuery.lastError().text();
    } else {
        while (groupQuery.next()) {
            groups.append(groupQuery.value(0).toString());
        }
    }

QStringList groups;
    QString SQL =   "SELECT groups.name FROM groups "
                    "INNER JOIN shiptypes ON groups.id = shiptypes.groupid "
                    "INNER JOIN ships ON shiptypes.id = ships.shiptype "
                    "INNER JOIN reports ON ships.id = reports.ship "
                    "INNER JOIN posts ON posts.id = reports.postid "
                    "WHERE posts.stamp = :stamp";
    QSqlQuery groupQuery(connection);
    groupQuery.prepare(SQL);
    groupQuery.bindValue(":stamp",reportKey);
    if (!groupQuery.exec()) {
        errorCode = 510;
        error = true;
        errorMessage = groupQuery.lastError().text();
    } else {
        while (groupQuery.next()) {
            groups.append(groupQuery.value(0).toString());
        }
    }

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I've checked reportKey and it contains the correct value for WHERE clause, so that isn't an issue. I've also checked database connection and it connects successfully with database. Any suggestions?