OS Measure to access: Minimum Air Flow Turndown Schedule Name

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I am trying to write an EnergyPlus measure to access/write the EnergyPlus field (#8) Minimum Air Flow Turndown Schedule Name on a AirTerminal:DualDuct:VAV object. For some reason I am successful in writing to the field #7 Design Specification Outdoor Air Object Name but it will not let me write to field #8. Does this have to do with the forward translator or is there something that I am missing? Maybe there is a mistake in my code?

The measure successfully runs, but when I examin the idf input file, it only seems to write to field #7. Here is the ruby file: https://drive.google.com/file/d/1e5UF...