User-Defined Export / Format File issue - DEVICE_STATUS

We have a class that has three External Reference parameters: DEVICE_STATUS1, DEVICE_STATUS2, and FAULT_STATUS.

I generated a format file for this class that has all fields selected.  When I perform a User Defined Export on an instance of this class, the DEVICE_STATUS1 and DEVICE_STATUS2 parameters will export the values as PASS_STATUS no matter what the actual parameter value is.  The FAULT_STATUS parameter value will be exported just fine though.  I tried changing the names of the DEVICE_STATUS parameters to something else, regenerated the format file, and the export worked fine.  I am wondering if DEVICE_STATUS is some kind of DeltaV keyword that is preventing my two parameters that begin with DEVICE_STATUS from being exported properly.  Has anybody seen behavior like this before?

See images below for reference.

Thanks,

Steven