Yeah, I think I've found the problem and am working on proving it out. For some records in the table the Create_Date and Cohort fields have a space in it which I think is making spunk barf. Seems strange to me since it's between the commas.
Assuming that this is the issue, what does the hive suggest is the best way to deal with it?
Example:
ZZZZZZZZZZZZZZZ,2014-04-19 23:31:55,Free App Default,0,0,0
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