Help with class deserialization

[cbrenberg]

I'm trying to use class deserialization to read from a parquet file with columns defined as below. The column names have dot delimiters to represent my C# class hierarchy, which I've had success with in other situations.

Column names:

timestamp, electricity.cooling.energy_consumption_intensity, electricity.fans.energy_consumption_intensity, district_cooling.cooling.energy_consumption_intensity, etc.

My root C# class looks like this:

public class TimeSeriesResult
    {
        public DateTime timestamp { get; set; }
        public DistrictCooling district_cooling { get; set; }
        public DistrictHeating district_heating { get; set; }
        public Electricity electricity { get; set; }
        public NaturalGas natural_gas { get; set; }
        public OtherFuel other_fuel { get; set; }
        public SiteEnergy site_energy { get; set; }
    }

All the property names throughout the nested class structure exactly match the parquet column names, yet when I call ParquetSerializer.DeserializeAsync<TimeSeriesResult>(), only the timestamp comes back with a value, and everything else comes back null

Any ideas for how to get the rest of the data to deserialize properly?
Do I maybe need to modify my schema to account for the struct fields when creating the parquet files?

For additional context: I'm creating the parquet files myself, and have full ownership of the C# code, so I can make changes on either side of things, but I'm out of ideas and could use some help.