I have a few different grids that use the column below. In VS 2012 it's fine, but in 2013 only the image shows up and all the other columns disappear. Then it just displays the columns horizontally instead of verticle.
<telerik:GridTemplateColumn Visible="true" AllowFiltering="false"
HeaderText="Image" UniqueName="dressImg5">
<HeaderStyle />
<ItemTemplate>
<asp:HyperLink ID="targetControl" runat="server" NavigateUrl="#">
<asp:Image ID="imgFront" Height="40" runat="server" AlternateText="Front"
ImageUrl='<%# Eval("ImgFrontId", "~/StreamImage.ashx?imageID={0}&thumb=Y") %>'
ImageAlign="Middle" />
</asp:HyperLink>
</ItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn Visible="true" AllowFiltering="false"
HeaderText="Image" UniqueName="dressImg5">
<HeaderStyle />
<ItemTemplate>
<asp:HyperLink ID="targetControl" runat="server" NavigateUrl="#">
<asp:Image ID="imgFront" Height="40" runat="server" AlternateText="Front"
ImageUrl='<%# Eval("ImgFrontId", "~/StreamImage.ashx?imageID={0}&thumb=Y") %>'
ImageAlign="Middle" />
</asp:HyperLink>
</ItemTemplate>
</telerik:GridTemplateColumn>