c# XMLReader skips nodes after using ReadElementContentAs

I am trying to parse an XML file and extract data from elements. The problem is that every time I use ReadElementContentAsX, the reader skips the next element. I don't know why is that. What am I missing?

while (reader.Read() && fileValid)
{
    if (reader.IsStartElement())
    {
        Console.WriteLine(reader.Name);
        switch (reader.Name)
        {
            case "ID": if (reader.ReadElementContentAsString() != ID) { fileValid = false; } break;
            case "Size": if (reader.ReadElementContentAsInt() != EEPROM_SIZE)
                {
                    fileValid = false;
                }
                break;
            case "Data": reader.MoveToContent(); if (reader.ReadElementContentAsBase64(eeprom_primary, 0, EEPROM_SIZE) != EEPROM_SIZE) { fileValid = false; }
                else
                {

                }; break;
            default:
                break;
        }
    }
}

The XML structure is as follows: -ParrentNode --ID:String --Date:TimeDate --SoftwareVersionMajor:int --SoftwareVersionMinor:int --Size: int --Data: encodedBase64

So in my case i read element content for element ID, Size. It will skip element Date and Data. I checked if i remove the readElementContentAs it will not skip the next node