MetroTouch "DragHandleDown.png" resource appears to be missing from 2015.1.225.40 version of Telerik.Web.UI.Skins.dll.

Got the following in my event logs:

Event message: An error occurred processing a web or script resource request. The requested resource 'pTelerik.Web.UI.Skins|Telerik.Web.UI.Skins.MetroTouch.Slider.DragHandleDown.png' does not exist or there was a problem loading it. 

Checked in the .dll for any reference to said resource. Found instances of "DragHandleDown.gif" for other skins (Black, Office2010Black, etc.) but nothing for MetroTouch.

Executing a cut command when Track Changes are enabled in RadEditor results in unexpected rearrangement of the content.

According to current implementation of paste functionality for IE, the editor gets the pasted content by executing the browser's paste command - 
editor.get_document().execCommand("Paste", null); 
This does not paste anything when browser's security setting "Allow Programmatic clipboard access" is disabled.

Uploading a file when ExplorerMode is set to FileTree causes a JavaScript error in FileExplorer when the AsyncUpload is enabled.

Accepting tracked deleted block element will delete the following block element

Programmatic configuration of the data binding of markers is unavailable from the code behind.  

For example:
 RadMap1.DataBindings.MarkerBinding.DataShapeField = "Shape";
 RadMap1.DataBindings.MarkerBinding.DataTitleField = "City";
 RadMap1.DataBindings.MarkerBinding.DataLocationLatitudeField = "Latitude";
 RadMap1.DataBindings.MarkerBinding.DataLocationLongitudeField = "Longitude";

Dear Team,

I using Telerik for SharePoint on a page layout I am using the tag below

<telerik:RadHtmlField id="EnglishContent" FieldName="English Content" runat="server"> </telerik:RadHtmlField>

My customer requires to have a default text value inside this editor every time the user creates new page from the page layout. When I am trying to use rhe <content> tag I got an error that the tag content is not recognized as a Rad HTML Field tag.

The long code lines in the QSF code viewer are very hard to read as the only way to get the horizontal scroll-bar is to reach the bottom of the page.

When the Zip Skin archive is modified and uploaded to the SkinsAssemblyBuilder, the page throws a server error.

When localizing RadSpell to e.g., German, buttons' text is longer than expected and overflows outside the button.

To fix the issue you can use an external dialog css file like in this code snippet:

ASP.NET 
--------------------------------------------------------------------------------------
<asp:TextBox ID="textBox2" runat="server" width="100%" Height="100px" 
    TextMode="MultiLine">Dies ist eine Textbox mit ainigen absichtlichen fehlern.</asp:TextBox>
<br />
<telerik:RadSpell ID="spell2" runat="server" ControlToCheck="textBox2" Language="de-DE"
    DictionaryLanguage="de-DE" SpellCheckProvider="EditDistanceProvider" Skin="Silk" DialogsCssFile="spell-dialog-css.css"></telerik:RadSpell>


CSS
--------------------------------------------------------------------------------------
button {
    overflow: hidden;
    white-space: nowrap;
    overflow: hidden;
    -ms-text-overflow: ellipsis;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
}

Workaround:
Toggle the fullscreen mode of the editor by adding the "editor.toggleScreenMode()" method two times at the end of the following callback, located in this JavaScript file ("C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\wpresources\RadEditorSharePoint\7.6.1.0__1f131a624888eeed\Resources\SPEditorTools.js")

configObj.ReturnCallback = function (url, text, config, newAsset) {
    elemLink.href = assetPickerValue.value;
    document.body.removeChild(assetPickerValue);
    if (inserting && url) {
        var images = elemLink.getElementsByTagName("img");
        var textContent = elemLink.innerText != null ? elemLink.innerText : elemLink.textContent;
        if (textContent === "" && (!images || !images.length)) {
            if (linkContent.match(/</)) {
                Telerik.Web.UI.Editor.Utils.setElementInnerHtml(elemLink, linkContent);
            }
            else {
                var textNode = elemLink.ownerDocument.createTextNode(linkContent || text);
                elemLink.appendChild(textNode);
            }
        }
        if (editorSelection) editorSelection.selectRange(currentRange);
        editor.pasteHyperLink(elemLink, "InsertLink");

//WORKAROUND:
        if (editor.isFullScreen() == true) {
            editor.toggleScreenMode();
            editor.toggleScreenMode();
        }
    }
};

The issue is reproducible with RadAlert, RadConfirm and RadPrompt dialogs without setting Behavior Move and DestroyOnClose="true"