Symptoms

Copy list item is throwing the following error:
Service: Service Instance]
Service Guid: GUID]
Severity: Error
Error Message: Sequence contains no matching element
InnerException Message:

 

Diagnoses

This was caused due to the source list does not have managed metadata column while the target does. When this column is mapped, the workflow will throw this error.
 

Resolution

Unmapped the managed metadata in the event and redeploy resolved the issue.