Entity Framework Core with joining entity

My customers are two kinds, companies and individuals, so I had to use three classes: one for companies, one for individuals, and the third one to join them, so my models are as follow:

public class CustomerCompany
{
  public string CustomerId { get; set; }
  public string Name { get; set; }
  public virtual Customer Customer { get; set; }   
}

-

public class CustomerIndividual
{
  public string CustomerId { get; set; }
  public string FirstName { get; set; }
  public string LastName { get; set; }
  public virtual Customer Customer { get; set; }   
}

-

public class Customer
{
  public string CustomerId { get; set; }
  public string address { get; set; }
  public virtual CustomerCompany Company { get; set; }
  public virtual CustomerIndividual Individual { get; set; }  
}

Then I configured the one to one relationship as follows:

protected override void OnModelCreating(ModelBuilder builder)
{
    base.OnModelCreating(builder);
    builder.Entity<Customer>(customer =>
    {
        customer.HasOne(c => c.Company)
            .WithOne(cc => cc.Customer)
            .HasForeignKey<CustomerCompany>(c => c.CustomerId)
            .IsRequired();

        customer.HasOne(c => c.Individual)
            .WithOne(ci => ci.Customer)
            .HasForeignKey<CustomerIndividual>(c => c.CustomerId)
            .IsRequired();
    });
}

Now when I try to seed data in the following order: 1-CustomerCompanies 2-CustomerIndividuals 3-Customers, I get the following error:

INSERT INTO "CustomerCompanies" ("CustomerId", "Name") VALUES (@p0, @p1); Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 19: 'FOREIGN KEY constraint failed'.

What am I doing wrong here ?