When the RadEditor is used on Chrome, it is not focused and you click on the empty space in the content area or call the client-side function 'setFocus', the cursor in the content area will not appear, because the editor does not get the focus.

You can use the following workaround to avoid the problem when the editor's content is clicked:
        <telerik:RadEditor runat="server" ID="RadEditor1" OnClientLoad="OnClientLoad">
        </telerik:RadEditor>

        <script type="text/javascript">
            function OnClientLoad(editor, args) {
                if ($telerik.isChrome) {
                    setTimeout(function () {
                        var body = editor.get_contentArea();
                        var contentElm = editor.get_contentAreaElement();

                        body.style.height = (contentElm.offsetHeight - 10) + "px";
                    }, 0);
                }
            }
        </script>