when i click rebuild i got a What's wrong list with many features that i don't have in my part

I modified my macro to delete the hidden body-move/copy features and your model seemed to return to what you expected.  I can make no guarantees as to the stability of the model after the macro is run as I still do not know how the body-move/copy features were created.  I have pasted the macro below.  Before running it, make sure you suppress all the features from the weldment thru the Body-Delete1 feature otherwise the model will want to rebuild itself each time a body-move/copy feature is deleted.

Dim swApp As SldWorks.SldWorks

Dim swModelDoc As SldWorks.ModelDoc2

Dim swFeature As SldWorks.Feature

Dim swFeat2 As SldWorks.Feature

Sub main()

    Set swApp = Application.SldWorks

    Set swModelDoc = swApp.ActiveDoc

    Set swFeature = swModelDoc.FirstFeature

    Set swSelMgr = swModelDoc.SelectionManager

    Do Until swFeature Is Nothing

        Debug.Print swFeature.Name

        Set swFeat2 = Nothing

        If InStr(1, swFeature.Name, "Body-move/copy", vbTextCompare) Then

            Set swFeat2 = swFeature

        End If

        Set swFeature = swFeature.GetNextFeature

        If Not swFeat2 Is Nothing Then

            swFeat2.Select2 False, -1

            swModelDoc.DeleteSelection False

        End If

    Loop

End Sub