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Hi macgajos, This doesn't seen like a bug. What is happening is that you are calling SetDesignSlotImage twice and the method itself performs a save (which occurs async). So the second time aroud, the entities still haven't been saved, but have already been modified. Your simplified code using NorthwindIB: void MainPage_Loaded(object sender, RoutedEventArgs e) { _mgr.Orders.AsScalarAsync().First(orderOp => { var order = orderOp.Result; if (order.EmployeeID != null) { order.Employee.EntityAspect.Delete(); order.Employee = null; } order.Employee = new Employee() { FirstName = "Silvio1", LastName = "Belini1" }; _mgr.SaveChangesAsync(savedArgs1 => { if (savedArgs1.CompletedSuccessfully) { MessageBox.Show("saved ok"); } else { MessageBox.Show(savedArgs1.Exception.Message); } }); // second time around if (order.EmployeeID != null) { order.Employee.EntityAspect.Delete(); order.Employee = null; } order.Employee = new Employee() { FirstName = "Silvio2", LastName = "Belini2" }; _mgr.SaveChangesAsync(savedArgs2 => { if (savedArgs2.CompletedSuccessfully) { MessageBox.Show("saved ok"); } else { MessageBox.Show(savedArgs2.Exception.Message); } }); }); } What exactly are you trying to accomplish by modifying the same entity twice, the second time being while the first SaveChanges call is still pending? Regards, Silvio.
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