OnRequestEnd.cfm not in the same directory as Application.cfm
Resolution
OnRequestEnd.cfm is in the same directory as Application.cfm
Explanation
When the Application.cfm file is found ColdFusion looks only looks for the OnRequestEnd.cfm file in the same directory. It is not required that you have an OnRequestEnd.cfm file, or an Application.cfm file for that matter, but if use an OnRequestEnd.cfm file it must be in the same directory as an Application.cfm file.