Event rule transform breaks when the content inside is too complexDescriptionEvents are failing with Regex exception "Invalid regex on event processing".Steps to Reproduce Create an event rule.Fill the transform of the 'Description' field with a combination of long additional fields names and multiple fields.Send an event which matches the event rule. The event fails in error due to the exception.WorkaroundThis problem is currently under review. You can contact ServiceNow Technical Support or subscribe to this Known Error article by clicking the Subscribe button at the top right of this article to be notified when more information becomes available.Related Problem: PRB1565938