When the editor is loaded with a full HTML page editable document, which contains nested tables with images inside, selecting an image causes the Chrome browser to break. 

Possible workaround is disabling the resize widget of the tables and images in Chrome by incorporating this sample code:

<telerik:RadEditor ID="RadEditor1" runat="server">
</telerik:RadEditor>

<script type="text/javascript">
    Telerik.Web.UI.RadEditor.prototype._initializeResizableWidget =
        function myfunction() { };
</script>