Geodatabase error (-2147219115) when using fanout

I am reading data form an Oracle database and writing it to an ESRI File Geodatabase. It works fine until I try to use the fanout feature.  I get this error: 

 

 

Geodatabase Error (-2147219115): The row contains a bad value.

 

FileGDB Writer: A feature could not be written

 

 

It doesn't matter whether I use the fanout at the writer level or at the feature type level, I still get the same error.  The data in the fanout field is a simple numerical version of the current date (20150209).  There are no spaces in the field. I have tried changing the geodatabase overwrite settings, the name of the geodatabase, and creating a completely blank geodatabase. So far, nothing works.

 

 

If there is another way to apend the current date to the feature type name in the writer, I would love to hear about it.

 

 

Thanks!