Leeann After some further review, it looks like we won’t be able to simply mask this error and retry, since the error is the same one returned when an invalid UUID is used while launching a Wrkflow.
The correct path forward is to move this flow over to the Platform API Wrk Actions( Launch a Sync Wrkflow or Launch an Async Wrkflow), which provide better support and more reliable error reporting than the legacy API.
That said, the Platform API Actions do not currently support files. If this Wrkflow relies on file inputs, it may not be possible to migrate at this time.