The attached doc file shows the layout. This contains 2 SQL Exceute tasks. For each of these tasks the on error event contains a Script task to collect the error and place in a variable.

The Collect All Errors (Script task) collects the errors and sends an email. In this situation the error is repeated twice.

I have even changed the Class Name in the script tasks, to something other than ScriptMain, and also the entry points but I still get the message repeated.