CameraControl - NullReferenceException is thrown when changing the camera settings

Hi, first of all thank you for the quick fix which works when you unplug the webcam from the usb port when the drop drop down menu is closed. But the solution isn't a final solution as there is still a possibility to crash the application as you can see in the enclosed video.
Please try the following:
1.) Open the settings of the camera control
2.) Select "None"
3.) Open the drop down menu which contains two entries (none and the one for the webcam) and keep it opened
4.) Unplug the webcam from the usb port (note: the webcam entry is still visible in the opened drop down menu)
5.) Select the webcam entry
The stack trace is as follows:
  bei DevExpress.Data.Camera.CameraDevice.Stop(Boolean forced)
  bei DevExpress.Data.Camera.CameraDevice.RunDevice()
  bei DevExpress.Data.Camera.CameraDevice.Start()
  bei DevExpress.XtraEditors.Camera.CameraControl.StartDevice(CameraDevice device)
  bei DevExpress.XtraEditors.Camera.CameraControl.Start(CameraDevice device)
  bei DevExpress.XtraEditors.Camera.CameraSettingsControl.SetCurrentDeviceInfo(CameraDeviceInfo devInfo)
  bei DevExpress.XtraEditors.Camera.CameraSettingsControl.cbDevices_EditValueChanged(Object sender, EventArgs e)
  bei DevExpress.XtraEditors.Repository.RepositoryItem.RaiseEditValueChangedCore(EventArgs e)
  bei DevExpress.XtraEditors.Repository.RepositoryItem.RaiseEditValueChanged(EventArgs e)
  bei DevExpress.XtraEditors.BaseEdit.RaiseEditValueChanged()
  bei DevExpress.XtraEditors.BaseEdit.OnEditValueChanged()
  bei DevExpress.XtraEditors.TextEdit.OnEditValueChanged()
  bei DevExpress.XtraEditors.PopupBaseAutoSearchEdit.OnEditValueChanged()
  bei DevExpress.XtraEditors.BaseEdit.OnEditValueChanging(ChangingEventArgs e)
  bei DevExpress.XtraEditors.TextEdit.OnEditValueChanging(ChangingEventArgs e)
  bei DevExpress.XtraEditors.BaseEdit.set_EditValue(Object value)
  bei DevExpress.XtraEditors.ComboBoxEdit.set_EditValue(Object value)
  bei DevExpress.XtraEditors.PopupBaseEdit.AcceptPopupValue(Object val)
  bei DevExpress.XtraEditors.PopupBaseEdit.UpdateEditValueOnClose(PopupCloseMode closeMode, Boolean acceptValue, Object newValue, Object oldValue)
  bei DevExpress.XtraEditors.PopupBaseEdit.DoClosePopup(PopupCloseMode closeMode)
  bei DevExpress.XtraEditors.PopupBaseEdit.ClosePopup(PopupCloseMode closeMode)
  bei DevExpress.XtraEditors.PopupBaseEdit.ClosePopup()
  bei DevExpress.XtraEditors.Popup.PopupListBox.ClosePopup()
  bei DevExpress.XtraEditors.Popup.SimplePopupListBox.OnMouseUp(MouseEventArgs e)
  bei System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
  bei System.Windows.Forms.Control.WndProc(Message& m)
  bei DevExpress.Utils.Controls.ControlBase.WndProc(Message& m)
  bei DevExpress.XtraEditors.BaseControl.WndProc(Message& msg)
  bei DevExpress.XtraEditors.BaseListBoxControl.WndProc(Message& m)
  bei System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
  bei System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
  bei System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
  bei System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
  bei System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
  bei Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
  bei Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
  bei Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
  bei BackOffice.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:Zeile 81.
  bei System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
  bei System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
  bei Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
  bei System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
  bei System.Threading.ThreadHelper.ThreadStart()

Hi Wassim,

Thank you for pointing out this issue. Please give us additional time to perform additional research. We will get back to you soon.

Problem is fixed now, ty