Start Process Smart Service failing though Process Instance is being triggered

I am triggering a Process Instance by using 'Start Process Smart Service'. A weird behavior I have noticed is, the Process Instance is being triggered but the Start Process Smart Service is crashing with an error. The target process model has just two parameters out of which one is of type CDT(single) and other is of type Date (single). I can also clearly see the triggered instances, the parameterised variables in triggered instances populated with values configured in the Start Process Smart Service node.

Content from logs is as follows:
UnattendedJavaActivityRequest] ERROR com.appiancorp.process.engine.UnattendedJavaActivityRequest - An error occurred while executing activity: id=536936184, classname=com.appiancorp.process.runtime.activities.StartProcessSmartService2
12:39:25,568 INFO [stdout] (Appian Work Item - 6406 - Proce...

OriginalPostID-240702

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  • @sikhivahan, on our environment, we are using a!startprocess rather than the smart service to start a process model from sail form.
    The process model takes list of numbers as parameter. We did not have chaining initially. It worked fine.
    We then added chaining to check if it affects a! startprocess. But it still worked.
    My understanding is that both the smart service and the sail function are expected to behave similar. But it does not seem so.
    Can you also try using starting the process model using the function and keeping the chaining. Let me know your observations.
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  • @sikhivahan, on our environment, we are using a!startprocess rather than the smart service to start a process model from sail form.
    The process model takes list of numbers as parameter. We did not have chaining initially. It worked fine.
    We then added chaining to check if it affects a! startprocess. But it still worked.
    My understanding is that both the smart service and the sail function are expected to behave similar. But it does not seem so.
    Can you also try using starting the process model using the function and keeping the chaining. Let me know your observations.
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