Exception in GetOpenOrdersAsync()

[danielhw2]

Describe the bug
Exception ocurring when I call GetOpenOrdersAsync

Line of code:
var UntriggeredStopOrdersA = ClienteRest.FuturesApi.CommonFuturesClient.GetOpenOrdersAsync().Result;

Response:

System.AggregateException
  HResult=0x80131500
  Message=One or more errors occurred. (Value cannot be null. (Parameter 'source'))
  Source=System.Private.CoreLib
  StackTrace:
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at System.Threading.Tasks.Task`1.get_Result()
   ...
  This exception was originally thrown at this call stack:
    [External Code]

Inner Exception 1:
ArgumentNullException: Value cannot be null. (Parameter 'source')

Versions:
CryptoExchange.Net 6.0.3
Kucoin.Net 5.0.2

** UPDATE in oct/10/2023

Same error ocours in the new versions:
CryptoExchange.Net 6.1.5
Kucoin.Net 5.0.4