User Process Payload Service not being called when receiving EDIINT via AS2

in WM 9.5 We are receiving a EDIINT message where the payload is not edi or xml. We have configured the ‘User Process Payload Service’ in WmEDIINT config screen of is to call a flow to know how to process the payload. This worked back on 3/30/15. All of the sudden something stopped this week and now we receive in the EDIINT but it does not process correctly. No error that I can see. Any ideas? It is like it thinks it is EDI so it is calling processMessage instead.