Application_Error event in Global.asax not firing in Release Mode? ASP.NET MVC application

I'm working on an ASP.NET MVC application. I'm having a problem where my Application_Error() event in my Global.asax file isn't firing in Release Mode. If I compile in Debug it fires just fine.

PS: I'm using NLogger to log my runtime errors.

Any help is appr开发者_JAVA百科eciated. Thanks.

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Are you sure that it's just not NLogger that doesn't log in Release mode? How do you know Application_Error isn't firing?