Hi, We have a script task which has Outputs data configured to capture

Can you let know what you have configured in the Outputs tab?

Sure

"Closed" is stored in a PV

Hi,
One possible case would be the assignment, if the assignment is set to "Run as whoever designed this process model" and designer of last published version is deactivated then this situation would come. we have come across the same issue.
Please check assignment once.

But it is set as "Run as whoever started this process"

Is initiator of the process is still active? is this happening for all users or for a particular user?

with the Info shared and based on the Posts,If you are using in a subprocess, there might be a chance of your parent process being killed or deleted so that all the subprocess might also fail....Please check this also if it is included in a subprocess

@ammireddys - Yes, initiator is still active... it's happening only for few process and for few users...

@harshav - it's not within sub process..

Can you check application server log after failure , it might give you some pointer to debug this issue.

Can you please share the code which is implemented in that script task... and also is there any scenario like., there are path A and Path B, is there any scenario like...in which path it is failing...