AutoMapper définissant toutes les propriétés sur NULL sur la destination

Dans une API Web ASP.NET Core 1.1, j'essaie de mapper un modèle d'entité sur un DTO à l'aide d'AutoMapper.

Le modèle d'entité:

namespace InspectionsData.Models
{
    [Table("property")]
    public class Property
    {

        [Key]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        [Column("property_id")]
        public int? Id { get; set; }

        [Column("show_inventory")]
        public bool ShowInventory { get; set; }

        [Column("latitude")]
        public double? Latitude { get; set; }

        [Column("longitude")]
        public double? Longitude { get; set; }

        [Column("property_type_id")]
        public int? PropertyTypeId { get; set; }
        [ForeignKey("PropertyTypeId")]        
        [Display(Name = "Property Type")]
        public PropertyType PropertyType { get; set; }

        [Column("inspection_frequency_id")]
        public int? InspectionFrequencyId { get; set; }
        [ForeignKey("InspectionFrequencyId")]        
        [Display(Name = "Inspection Frequency")]
        public InspectionFrequency InspectionFrequency { get; set; }

        [Column("group_id")]
        public int? GroupId { get; set; }
        [ForeignKey("GroupId")]
        [Display(Name = "Group")]
        public Group Group { get; set; }

        [Column("added_by_id")]
        public int? AddedById { get; set; }
        [ForeignKey("AddedById")]
        [Display(Name = "Added By")]
        public virtual User AddedBy { get; set; }

        [Column("added_date")]
        [Display(Name = "Added Date")]
        public DateTime AddedDate { get; set; }

        [Column("deleted_by_id")]
        public int? DeletedById { get; set; }
        [ForeignKey("DeletedById")]
        [Display(Name = "Deleted By")]
        public virtual User DeletedBy { get; set; }

        [Column("deleted_date")]
        [Display(Name = "Deleted Date")]
        public DateTime? DeletedDate { get; set; }
    }

et le DTO:

namespace InspectionsData.DTOs
{
    public class PropertyDto
    {
        public int? Id { get; set; }
        public bool ShowInventory { get; set; }
        public double? Latitude { get; set; }
        public double? Longitude { get; set; }
        public PropertyType PropertyType { get; set; }
        public InspectionFrequency InspectionFrequency { get; set; }
        public DateTime NextInspectionDate { get; set; }
    }
}

Le mappage est effectué dans un fichier de configuration:

public class AutoMapperProfileConfiguration : Profile
{
    public AutoMapperProfileConfiguration()
    {
        // Add as many of these lines as you need to map your objects
        var map = CreateMap<Property, PropertyDto>();
        map.ForAllMembers(opt => opt.Ignore());
        map.ForMember(dest => dest.Id, opt => opt.MapFrom(src => src.Id));
        map.ForMember(dest => dest.ShowInventory, opt => opt.MapFrom(src => src.ShowInventory));
        map.ForMember(dest => dest.Latitude, opt => opt.MapFrom(src => src.Latitude));
        map.ForMember(dest => dest.Longitude, opt => opt.MapFrom(src => src.Longitude));
        map.ForMember(dest => dest.PropertyType, opt => opt.MapFrom(src => src.PropertyType));
        map.ForMember(dest => dest.InspectionFrequency, opt => opt.MapFrom(src => src.InspectionFrequency));
    }    
}

Et la configuration d'AutoMapper dans Startup.cs:

public void ConfigureServices(IServiceCollection services)
{
    var config = new AutoMapper.MapperConfiguration(cfg =>
    {
        cfg.AddProfile(new AutoMapperProfileConfiguration());
    });

    var mapper = config.CreateMapper();
    services.AddSingleton(mapper);
}

Dans mon action de contrôleur, j'exécute le mappage:

    [HttpGet]
    public async Task<IActionResult> GetProperty()
    {
            var properties = _context.Property
                .Include(t => t.PropertyType)
                .Include(f => f.InspectionFrequency)
                .Where(a => a.DeletedDate == null && a.GroupId == 1);


            var propertiesDto = _mapper.Map<IEnumerable<PropertyDto>>(properties);

            return Ok(propertiesDto);
        }

Cela ne donne pas d'erreur, mais toutes les propriétés de tous les objets de la liste propertiesDto sont des valeurs par défaut (NULL pour les objets et les types nullables, FALSE pour les booléens, 0 pour les entiers, etc.) ?