No data with cl_readList() response

I'm trying to read a list of register with cl_readList (GuruxDLMS.c). I based my function on the GuruxDLMSClientExample. The reply from the meter is:
PDU: c403c1040104010401040104

<GetResponse>
<GetResponseWithList>
<!--Priority: HIGH ServiceClass: CONFIRMED invokeID: 1-->
<InvokeIdAndPriority Value="C1" />
<Result Qty="04" >
</Result>
</GetResponseWithList>
</GetResponse>

So appearently no actually register data and reply_isMoreData(&reply) is false.
What am I missing? (I'm using HighGMAC authentication.)

BR, Thomas Fogh

static DLMS_ERROR_CODE ReadRegisters(void)
{
gxArray list;
message messages;
gxReplyData reply;
DLMS_ERROR_CODE ret = DLMS_ERROR_CODE_OK;
gxByteBuffer bb, rr;

gxDataInfo info;
dlmsVARIANT value;

ESP_LOGD(METER_TAG, "ReadRegisters");

arr_init(&list);

arr_push(&list, key_init("0.1.96.8.0.255", (void *)2)); // Ch. 1 Time of operation, total
arr_push(&list, key_init("1.1.14.7.0.255", (void *)2)); // Ch. 1 Supply frequency Inst. value
arr_push(&list, key_init("1.1.13.7.0.255", (void *)2)); // Ch. 1 Sum Li Power factor Inst. value
arr_push(&list, key_init("1.1.32.7.0.255", (void *)2)); // Ch. 1 L1 Voltage Inst. value

mes_init(&messages);
if ((ret = cl_readList(&mvDlmsSettings, &list, &messages)) != 0)
{
ESP_LOGE(METER_TAG, "ReadList failed %s", hlp_getErrorMessage(ret));
}
else
{
uint8_t pos;

reply_init(&reply);
// NOTE! Set ignore value to true because list is parsed differently than normal read.
reply.ignoreValue = 1;
BYTE_BUFFER_INIT(&rr);
BYTE_BUFFER_INIT(&bb);
// Send data.
for (pos = 0; pos != messages.size; ++pos)
{
// Send data.
reply_clear(&reply);
if ((ret = HandleDLMSPacket(messages.data[pos], &reply)) != DLMS_ERROR_CODE_OK)
{
ESP_LOGE(METER_TAG, "HandleDLMSPacket failed %s", hlp_getErrorMessage(ret));
break;
}

// Check is there errors or more data from server
while (reply_isMoreData(&reply))
{
ESP_LOGD(METER_TAG, "reply_isMoreData");
// NOTE! Set ignore value to true because list is parsed differently than normal read.
reply.ignoreValue = 1;
//mvDlmsSettings.cipher.invocationCounter = ++invocationCounter;
if ((ret = cl_receiverReady(&mvDlmsSettings, reply.moreData, &rr)) != DLMS_ERROR_CODE_OK ||
(ret = HandleDLMSPacket(&rr, &reply)) != DLMS_ERROR_CODE_OK)
{
ESP_LOGE(METER_TAG, "MoreData HandleDLMSPacket failed %s", hlp_getErrorMessage(ret));
break;
}
bb_clear(&rr);
}
bb_set2(&bb, &reply.data, reply.data.position, -1);
}
if (ret == 0)
{
ESP_LOGD(METER_TAG, "bb.size: %u", bb.size);
}
bb_clear(&bb);
bb_clear(&rr);
reply_clear(&reply);
}
mes_clear(&messages);

arr_clear(&list);

return ret;
}