Invalid array index error when trying to export

Invalid array index

Next Steps/Resolution:
We first attempted to change the 'export with validation option'->same error
In the Project directory for eScan-IT for this particular project, located the export.dat file. Deleted this file; next exported batch->success

When attempting to export a batch getting the error message 'invalid index array' from an EDD batch:

This occurs w/ or w/o the option for validation.