Read of CSV/XML/JSON file created by OUTPUT posts MP Link Error in ECL IDE

If I OUTPUT any recordset to a file using a variable length format (CSV/XML/JSON), a subsequent read of that file is failing with the MP Link error.

CSV Read:

Error:    System error: 4: MP link closed (10.173.248.10:20100) (0, 0), 4,
Information:  4, MP link closed (10.173.248.10:20100) : Error aborting job, will cause thor restart, 4,

XML Read:
Error:    System error: 4: MP link closed (10.173.248.9:20100) (0, 0), 4,
Information:  4, MP link closed (10.173.248.9:20100) : Error aborting job, will cause thor restart, 4,

JSON Read:
Error:    System error: 4: MP link closed (10.173.248.8:20100) (0, 0), 4,
Information:  4, MP link closed (10.173.248.8:20100) : Error aborting job, will cause thor restart, 4,

The attached code will ONLY fail when launched from the ECL IDE. The code works fine in all formats when run on the ECL Command Line OR the ECL Playground. The code also works from the ECL IDE when targeting an hTHOR cluster.