BPM in CACHE won't activate. Fault message is not defined

Hello All,

After adding fault messages to our RFC scenarios, our BPM will no longer activate from transaction SXI_CACHE. The ReturnCode is 99. When we attempt to do a manual activation, we get an error which reads:

<b>Send step: Fault message '722783b5171311d9881bd5c4c0a8a777' is not defined</b>.

Have any of you seen this before?

We have mappings for the fault messages in interface mappings. Is there something else needed in the BPM itself?

Thanks,

Jimmy