-1.#IO error value when running battery storage in E+

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Has anyone encountered the -1.#J or -1.#IO error value when running EnergyPlus?

I made a building model with rooftop PV in OpenStudio, and am now using the IDF editor to add on-site battery storage using the Electric Load Center Distribution manager. I have added the following items to the ElectricLoadCenter:Distribution object: (1) ElectricLoadCenter:Generators (containing the list of my PV generators), (2) ElectricLoadCenter:Storage:Battery, (3) ElectricLoadCenter:Transformer, (4) ElectricLoadCenter:Inverter. The electric buss type for the load center distribution manager is DirectCurrentWithInverterDCStorage.

The model runs without any error messages, but the Electric Loads Satisfied table in the results page lists -1.#IO as the value for Power conversion, total on-site electric sources, and electricity coming from utility. I'm not quite sure how to interpret this, and it's hard to de-bug without any error messages to work from.