IE11 Enterprise Mode and the IIS Logging Website EmIE.asp (Log the Toggle)

I have successfully created Group Policies, and an IIS web service for IE11 Enterprise Mode Logging as per related TechNet articles.

The IE11 Enterprise Mode Logging feature appears to log the time I toggle Enterprise Mode; however, it doesn't record all the fields.... This is what the file looks like.

#Fields:date cs-uri-query cs-username c-ip

2014-12-16 - - 10.31.92.21
2014-12-16 - - 10.31.92.21

What am I missing? I assume, perhaps, I have misconfigured something on the IIS Web Service?

Here are the reference articles:

http://msdn.microsoft.com/en-us/library/dn781326.aspx

http://www.grouppolicy.biz/2014/04/setup-internet-explorer-11-enterprise-mode-logging/