error : Unable to update custom field 'customfield_10371' ....
The interesting thing about this error is that the custom field listed is not valid for this issue type.
I have upgraded to Jira Suite Utilities to version 1.3.2.
From the log: com.opensymphony.workflow.WorkflowException: Unable to update custom field customfield_10371 - <custom field name> in issue [ERX-*****].
at com.googlecode.jsu.workflow.function.UpdateIssueCustomFieldPostFunction.executeFunction(UpdateIssueCustomFieldPostFunction.java:94)
at com.googlecode.jsu.workflow.function.AbstractPreserveChangesPostFunction.execute(AbstractPreserveChangesPostFunction.java:59)
at com.opensymphony.workflow.AbstractWorkflow.executeFunction(AbstractWorkflow.java:1050)
at com.opensymphony.workflow.AbstractWorkflow.transitionWorkflow(AbstractWorkflow.java:1446)
at com.opensymphony.workflow.AbstractWorkflow.doAction(AbstractWorkflow.java:564)
at com.atlassian.jira.workflow.OSWorkflowManager.doWorkflowActionInsideTxn(OSWorkflowManager.java:894)
at com.atlassian.jira.workflow.OSWorkflowManager.doWorkflowAction(OSWorkflowManager.java:850)
at com.atlassian.jira.bc.issue.DefaultIssueService.transition(DefaultIssueService.java:449)
at com.atlassian.jira.web.action.issue.CommentAssignIssue.doExecute ...
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