same here, gives this error message:
(mx.messaging.messages::ErrorMessage)#0
body = (Object)#1
clientId = (null)
correlationId = "C04EDDF4-4A24-1FD2-A4AD-AAE1A86F357B"
destination = ""
extendedData = (null)
faultCode = "Client.Error.RequestTimeout"
faultDetail = "The request timeout for the sent message was reached without receiving a response from the server."
faultString = "Request timed out"
headers = (Object)#2
messageId = "93B5B5CC-9B7E-F70B-B307-AAE21DCCF5C4"
rootCause = (null)
timestamp = 0
timeToLive = 0