实体框架1-1关系不是将数据保留到数据库

我有一张表 FeeMetadata 与PK FeeID BIGINT IDENTITY（1,1）NOT NULL

此表包含两个1-1关系。一个到 PFD.Fees ，一个到 SoaCourt.Fees 通过 FeeID 列（所有三个表中的同名，仅元数据表标记为IDENTITY，其他两个表此列为PK但不标识）

This table contains two 1-1 relationships. One to PFD.Fees, and one to SoaCourt.Fees via the FeeID column (same name in all three tables, only the metadata table is marked as IDENTITY, the other two tables this column is PK but NOT identity)

这里是EF类的代码：

Namespace PFD

    <Table("FeeMetadata", Schema:="PFD")>
    Public Class FeeMetadata
        Public Sub New()
            MyBase.New()
        End Sub

        Public Sub New(ByVal tFee As SOACourt_v1)
            Me.New()

            Me.GroupKey = tFee.DriverLicenseNumber
            Me.PfdFee = New PFD.Fee(tFee)
            Me.SoaCourtFee = New SoaCourt.Fee(tFee)
        End Sub

        <Key>
        <DatabaseGenerated(DatabaseGeneratedOption.Identity)>
        Public Property FeeID As Int64

        ' Other domain-specific properties...

        Public Property SoaCourtFee As SoaCourt.Fee
    End Class
End Namespace


Namespace PFD
    <Table("Fees", Schema:="PFD")>
    Public Class Fee
        Public Sub New()
            MyBase.New()
        End Sub

        Public Sub New(ByVal tFee As SOACourt_v1)
            Me.New()

            Me.Amount = tFee.Amount
        Me.DueDate = tFee.DueDate
        End Sub

        <Key>
        <ForeignKey("MetaData")>
        <DatabaseGenerated(DatabaseGeneratedOption.None)>
        Public Property FeeID As Int64

        ' Other domain-specific properties...

        Public Property MetaData As FeeMetadata
    End Class
End Namespace


Namespace SoaCourt
    <Table("Fees", Schema:="SoaCourt")>
    Public Class Fee
        Public Sub New()
            MyBase.New()
        End Sub

        Public Sub New(ByVal tFee As SOACourt_v1)
            Me.New()

            Me.CaseID = tFee.CaseID
            Me.CaseNumber = tFee.CaseNumber
            Me.TicketNumber = tFee.TicketNumber
        End Sub

        <Key>
        <ForeignKey("MetaData")>
        <DatabaseGenerated(DatabaseGeneratedOption.None)>
        Public Property FeeID As Int64

        ' Other domain-specific properties 

        Public Property MetaData As PFD.FeeMetadata
    End Class
End Namespace

编辑：
创建和持久化数据库实体的代码：

Code to create and persist the database entities:

Using tContext As FeesContext = New FeesContext
    For Each tFee As SOACourt_v1 In tFees
        tContext.FeeMetadata.Add(New PFD.FeeMetadata(tFee))
    Next
    tContext.SaveChanges()
End Using

我遇到的问题是SoaCourt.Fee实体没有被持久化到数据库。
PFD.FeeMetadata和PFD.Fee都正常保存，但是SoaCourt.Fee不是。

The problem I am having is that the SoaCourt.Fee entities are not being persisted to the database. PFD.FeeMetadata and PFD.Fee are both saving properly, but SoaCourt.Fee is NOT.

有关如何解决这个问题的任何想法？

Any thoughts on how to solve this?