PostgreSQL - The binary import operation was started with x column(s), but y value(s) were provided.

[fmjnax]

Version 8.0.3

Code in question:

public class JobValidationResult
{
    public Guid Id { get; set; }
    public Guid JobId { get; set; }
    public string Validator { get; set; } = string.Empty;
    public int RowIndex { get; set; }
    public bool IsSuccess { get; set; } = true;
    public string Message { get; set; } = string.Empty;

    public Job Job { get; set; } = new();
}

--------

var bulkConfig = new BulkConfig
{
    PropertiesToInclude = new List<string>
    {
        nameof(JobValidationResult.JobId),
        nameof(JobValidationResult.Validator),
        nameof(JobValidationResult.RowIndex),
        nameof(JobValidationResult.IsSuccess),
        nameof(JobValidationResult.Message)
    }
};

await _dbContext.BulkInsertAsync(failedResults, bulkConfig);

The "failedResults" variable is a List<JobValidationResult>. An example of one of the entries in the list:
Id: {00000000-0000-0000-0000-000000000000}
IsSuccess: false
Job: {ETLSchema.Job}
JobId: {65857f48-dbea-4bf4-80ac-fb829b602a66}
Message: "TestField is blank/empty"
RowIndex: 1
Validator: "CheckNonEmpty : Row 1, Field TestField"

The "Id" field is an auto-generated UUID on the database so it doesn't need to be inserted.
The "Job" is a navigational property

No matter what I do, I get the following error:
The binary import operation was started with 5 column(s), but 6 value(s) were provided.

I have tried both the 'PropertiesToExclude' and 'PropertiesToInclude' BulkConfig options