System.Text.Json adds an extra curly bracket ONLY TO END so it causes exception - system.text.json

Question

I am sending JSON object through TcpSocket. I deserialize it after destination receives. Usually first a few objects are sent and deserialized without issue! And then suddenly one comes with an extra curly braket only at the end then run time exception.
Seriosuly, what the hell is this ?
System.Text.Json.JsonException: ''}' is invalid after a single JSON value. Expected end of data. Path: $ | LineNumber: 0 | BytePositionInLine: 32.'
{"Value":3,"Name":"Blood Sugar"}}
while(true)
{
seperateSocketForEachRequest.Receive(byteMessage);
seperateSocketForEachRequest.Send(Encoding.UTF8.GetBytes("FF"));
string stringMessage = Encoding.UTF8.GetString(byteMessage);
stringMessage = stringMessage.Substring(0, stringMessage.IndexOf('\0'));
Object message = JsonSerializer.Deserialize<Object>(stringMessage);
}
////////////////////////////////////////
while (Form.isGenerate)
{
Data newData = dataType.generate(person.generatingParameters);
Thread.Sleep(500);
clientSocket.Send(Encoding.UTF8.GetBytes(JsonSerializer.Serialize<Data>(newData)));
byte[] messageReceivedByte = new Byte[1024];
clientSocket.Receive(messageReceivedByte);
}

Answer 1

I found the issue. It is caused of data transmission. Apparently same buffer is used for writing data received from socket and new data is written over old data. Therefore, when value of data is 2 digit number, no issue, when a data comes with 1 digit, boom.
{"Value":76,"Name":"Blood Sugar"}
{"Value":99,"Name":"Blood Sugar"}
{"Value":76,"Name":"Blood Sugar"}
{"Value":1,"Name":"Blood Sugar"}}