XmlAttribute order or sequence going wrong while serializing .net class

I have a existing class where we have many public properties. Most of them are decorated with [XmlAttribute]. Issue is when I have 16 member then xml show order of attribute correctly

class Market
{
    [XmlArray(Order = 0)]
    [XmlArrayItem(IsNullable = false)]
    public List<Option> Options { get; set; }

    [XmlElement(Order = 1)]
    public MarketType MarketType { get; set; }

    [XmlAttribute]
    public int Id {get;set;}

    [XmlAttribute]
    public string Name {get;set;}

    [XmlAttribute]
    public bool IsEnabled {get;set;}
        .
        .
        .
    // like this 17 XML attribute are there
}
<Market Id="10" Name="Test" IsEnabled="false"  ...  a="" b="" c="" d="">

When I have 17 attribute then it brings 3rd Last and 4th Last attribute in the start and 1st properties goes to 3rd last and 4th last position, i.e. order got disturbed. I tried shuffling element, it only swaps 1st 2 attribute with 3rd and 4th last attribute.

<Market b="" a="" IsEnabled="false"  ... Name="Test" Id="10"  c="" d="">

You can’t rely on the order of attributes in XML: https://stackoverflow.com/a/57757267/20771004

If order is important, you might want to make them elements instead.

Use a custom serialization using IXmlSerializable

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    class Market : IXmlSerializable
    {

        [XmlAttribute]
        public int Id {get;set;}

        [XmlAttribute]
        public string Name {get;set;}

        [XmlAttribute]
        public bool IsEnabled {get;set;}
 
        // like this 17 XML attribute are there
        public void WriteXml(XmlWriter writer)
        {
            writer.WriteAttributeString("Id", Id.ToString());
            writer.WriteAttributeString("Name", Name);
            writer.WriteAttributeString("IsEnabled", IsEnabled.ToString());
        }

        public void ReadXml(XmlReader reader)
        {
            XElement element = (XElement)XElement.ReadFrom(reader);
            foreach(XElement node in element.Elements())
            {
            }
            foreach (XAttribute attribute in element.Attributes())
            {
                switch (attribute.Name.LocalName)
                {
                    case "Id" :
                        Id = (int)attribute;
                        break;
                    case "Name":
                        Name  = (string)attribute;
                        break;
                    case "IsEnabled":
                        IsEnabled = (Boolean)attribute;
                        break;
                }
            }
        }

        public XmlSchema GetSchema()
        {
            return (null);
        }
    }

<!-- end snippet -->

Got a proper solution, I removed order from XmlArray and XmlElement and it started working fine,
Now my class looks like this

class Market
{
    [XmlArray]
    [XmlArrayItem(IsNullable = false)]
    public List<Option> Options { get; set; }

    [XmlElement]
    public MarketType MarketType { get; set; }

    [XmlAttribute]
    public int Id {get;set;}

    [XmlAttribute]
    public string Name {get;set;}

    [XmlAttribute]
    public bool IsEnabled {get;set;}
    .
    .
    .
    // like this 17 XML attribute are there
}