[RPC Fault faultString="HTTP request error" faultCode="Server.Error.Request" faultDetail="Error: [IOErrorEvent type="ioError" bubbles=false cancelable=false eventPhase=2 text="Error #2032: Stream Error. URL:xxx"]. URL:xxx”]
Yesterday this error raised the first time. Today I figured out what it could be.
It seems this error raises when Flex tries to access two files at the same time through a HttpService. Looks like a SandBox restriction.
More information on error #2032 (ioError) and other occurences can be found in a post by Judah here (seems to give a lot of 404 pages).