IDM 3.5, Peoplesoft 5 driver

The driver is working on every attribute and synch's every attribute until
I want to synch a multi-value attribute. The attribute coming from
Peoplesoft is MAILALTERNATEADDRESS and the edirectory attribute is NSCP:
AmailAlternateAddress. The customer wants to use this field to hold an
email address in case the user get's married and they are assigned 2 email

The error in the IDM log from the PS driver is:
<nds dtdversion="2.0">
<status level="error" type="driver-general">
<description>Publisher query exception:
com.novell.nds.dirxml.driver.psoftshim.CIException : Field '' does not
exist in schema 'MAILALTERNATEADDRESS'</description>

The schema is mapped correctly and the filter is also. The attribute from
PS is being populated.

Here is the log showing the data:
<modify-attr attr-name="MAILALTERNATEADDRESS">
name="MAILALTERNATEADDRESS"> </component>
name="MAILALTERNATEADDRESS"> t</component>

So I'm not exactly sure what that error means and how to fix it. Any help
would be appreciated.