Sorry to say I could not make it work either.
When I read the documentation it says
Read Filters
The XOG allows for outbound processing of users who are based on the following fields:
That is no other filters. I do see the field employmentType in the schema, but not as a filter.
Where do you see it as a filter?
You could read the error message also
Invalid attribute in input document. meaning that there is an unsupported filter field.
and
[Error] :0:0: attribute "name" has a bad value
meaning that the next word that comes after Filter name cannot be used.