Class_Terminate not firing on object from form

I have a very simple form, that uses a very simple class to handle some things. And that class has a Class_Terminate sub to clean up after itself. However, that doesn't seem to be firing when the form gets closed.

MCVE:

Form Form1, one text box named Text0, no further controls

Private myClass1 As Class1Private Sub Form_Load()    Set myClass1 = New Class1    myClass1.InitForm MeEnd Sub

Class Class1

Public theForm As FormPrivate WithEvents SomeTextbox As TextBoxPublic Sub InitForm(frm As Form)    Set theForm = frm    Set SomeTextbox = frm.Text0End SubPrivate Sub Class_Terminate()    MsgBox "Class1 terminated succesfully"End Sub

However, the class terminate handler doesn't fire when I close the form.

I tried unsetting the Form object in the class:

Private Sub Form_Unload(Cancel As Integer)    Set myClass1.theForm = NothingEnd Sub

But chaos ensued: The class terminate handler fires after closing the form, but immediately afterwards Access hard-crashes without any error message!