IDF Sizing:System Parameter Values Disagree w/ OpenStudio Model

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I've been finding that inputs entered into OS:Sizing:System in the OpenStudio HVAC loop interface oftentimes do not translate correctly into the Sizing:System object in the IDF that the model generates. In the images attached, Central Heating Maximum System Air Flow Ratio is hardsized in OpenStudio, but autosized in the IDF. I have noticed this issue for Central Heating Design Supply Air Temperature, 100% Outdoor Air in Cooling, and 100% Outdoor Air in Heating. I have performed basic troubleshooting - ensuring that I save entries before re-running, that I am comparing to the updated IDF, and that I'm pulling from the right directory. Is there an explanation for this model behavior and any known troubleshooting methods?