Bug report

When there is a frozen column in the TreeList, not all the columns are resized correctly on double-clicking on the resize handler.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliK/Aticudup
2. Double-click between the LastName and Position columns -> the LastName column is resized based on the content.
3. Double-click between the Position and Ext columns

Current behavior

The Position column is not resized and a scrollbar may appear depending on the width of the screen

Expected/desired behavior

The behavior when clicking on the drag handler should be the same for all the columns. In the described scenario the Posiiton column should be resized as well.

Environment

• Kendo UI version: 2024.1.130
• Browser: [all ]

Bug report

The Editor doesn't allow multiple separators through the tools configuration.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/eSESEheW/19

Current behavior

Only the first separator is rendered.

Expected/desired behavior

All the separators should be rendered

Environment

• Kendo UI version: 2024.1.319
• Browser: [all]

Bug report

In a Grid with locked columns, there's an invalid aria-selected attribute on tr elements in the locked columns.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/aKVfRvAN/6
2. Select the first row
3. Inspect the tr element under the locked column in the browser

Current behavior

The tr role='none' element has invalid aria-selected attribute

Expected/desired behavior

The element shouldn't have the aria-selected attribute.

Environment

• Kendo UI version: 2025.2.520
• Browser: [all]

Bug report

NORM.S.INV, NORM.INV, and NORM.DIST are officially listed as supported formulas, but they are not functioning properly

Regression bug since 2024.4.1112

Reproduction of the problem

Open the Demos - https://demos.telerik.com/kendo-ui/spreadsheet/index

Paste: =NORM.S.INV(0.908789)

Result must be 1.3333347

Environment
Kendo UI version: 2024.4.1112
Browser: [all ]

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/tLeSgMPo
2. Create a new event
3. Drag and drop it over the existing one

Current behavior

The events overlap

Expected/desired behavior

The events should be deisplayed one below each other.

The issue is a regression starting with 2023.2.606

Environment

• Kendo/Telerik version: 2026.2.520
• Browser: [all ]

Bug report
Grid's loader gets lost in the scrollable area height is greater than the viewport height

Reproduction of the problem

Dojo: https://dojo.telerik.com/hqknEyYx/2

Run and click on Export to Excel button

Worakround: https://dojo.telerik.com/gSsYgQpZ

excelExport: function (e) {
          let gridHeight = $("#grid").height();
          if (gridHeight < 700) {
            $("div.k-loader-container-inner").addClass("smallHeight");
            
          } else {
            $("div.k-loader-container-inner").addClass("biggerHeight");
          }
        }
...
<style>
        div.loaderPosition {
          position: absolute;
          top: 50%;
          left: 50%;
          transform: translate(-50%, -50%);
        }
      div.biggerHeight {
        position: absolute;
          top: 50vh;
          left: 50%;
          transform: translate(-50%, -50%);
      }
    </style>

Environment
Kendo UI version: [all[
jQuery version: 3.4.1
Browser: [all]

Bug report

If the snap option is set at runtime the drag hint of the events starts having wrong height.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliK/ilaziJEr
2. Try to disable and enable the Switch at the top ( you may need to disable and enable multiple times)
3. Drag the event

Current behavior

After changing the snap option at runtime as a result the drag hint height is correct when the snap is set to false, but it has wrong height when the snap is enabled.

Expected/desired behavior

The drag hint should have the same height as the dragged event.

Workaround

move: function(e){
				
          var dragHintEl = $('.k-event-drag-hint')
          var dataUid = $('.k-event-drag-hint').attr('data-uid')
          var event = $('.k-event[data-uid="'+ dataUid +'"]:not(.k-event-drag-hint)')         
          var height = $(event).height()
          $(dragHintEl).height(height)

        },

Dojo - https://dojo.telerik.com/@NeliK/aZArEdof

Environment

• Kendo UI version: 2024.1.130
• Browser: [all ]

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/VGCfaixF
2. Select the month part and start typing first letter of a February, April, June, September or November months.

Current behavior

The mentioned months not selected. However, some months such as Jan, July are selected as expected.

Expected/desired behavior

All the months should be filtered/selected when typing first letters

The issue is a regression starting with 2024.4.1112

Environment

• Kendo/Telerik version: 2026.2.520
• Browser: [all ]

Bug report

Reproduction of the problem

1. Open this dojo - https://dojo.telerik.com/YupCowEr

1. Add a new item to the Grid

1. Click 'Save Changes'

1. Add another item to the Grid

1. Click 'Cancel Changes'

Current behavior

The last saved item is moved to the end of the Grid

TicketID:

1716706

Environment

• Kendo/Telerik version: 2026.2.520

To reproduce :
go to official dojo https://dojo.telerik.com/PfhfyBzh

select all text (ctrl+A) (or select text with image at the same time with mouse)

Start dragging the selection

---> the error occurs (check console devTools)

Uncaught TypeError: Cannot read properties of undefined (reading '_destroyResizeHandles')

The error occurs here :

let fe = u.extend({
            create: function(e) {
                let t = this;
                a(e.body).on(`dragstart` + S, function() {
                    var t = x.nodes(e.getRange())
                      , n = !1;
                    t.forEach(function(e) {
                        e.nodeName === `IMG` && (n = !0)
                    }),
                    n && t.length > 1 && e.elementResizing._destroyResizeHandles()

your algorithm find one image in the selection and assume we are resizing and try to call "_destroyResizeHandles"

I think you should test before calling this method so it should be :

n && t.length > 1 && e.elementResizing && e.elementResizing._destroyResizeHandles()

Bug report

Current behavior

Errors during build process:

(replace-metadata plugin) [SOURCEMAP_BROKEN] Sourcemap is likely to be incorrect: a plugin (replace-metadata) was used to transform files, but didn't generate a sourcemap for the transformation. Consult the plugin documentation for help: https://rolldown.rs/guide/troubleshooting#warning-sourcemap-is-likely-to-be-incorrect

Expected/desired behavior

There should be no errors

TicketID:

1716119

Bug report

Change fired twice when triggered manually on input change and selecting value from popup list

Reproduction of the problem
Run the Dojo sample: https://dojo.telerik.com/aFOJhVWj

Environment
**Kendo UI version: 2025.1.227
**jQuery version: 3.7.1
**Browser: [all]

Bug report

Reproduction of the problem

1. Open the link in Firefox - https://demos.telerik.com/kendo-ui/editor/inline-editing .
2. Select and delete all the text in one of the inline editors.
3. Type any two (or more) characters to reproduce the issue.

Current behavior

If the user begins typing a word into the editor, the first character is automatically wrapped in a <p> tag.

Expected/desired behavior

The behavior between the browsers should be consistent. There should be no additional <p> tag.

Workaround: https://dojo.telerik.com/usTyJAmt/3

Environment

• Kendo/Telerik version: 2026.2.520
• Browser: [all ]

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/guOqNNgh
2. Edit a row and save the new value

Current behavior

An error: kendo.grid.js:16278 Uncaught TypeError: Cannot read properties of undefined (reading 'field')

Expected/desired behavior

No error should be thrown. It should be possible to use detailedTemplate along with the stackedLayout

TicketID: 1715859

Environment

• Kendo/Telerik version: 2026.2.520
• Browser: [all ]

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/IbJSAmGX
2. Try to reorder the rows and place for example row 1 below row 5

Current behavior

No row can be placed below row 5.

Expected/desired behavior

It should be possible to reorder and place a row at last possition

The issue is a regression starting with 2026.1.415

Environment

• Kendo/Telerik version: 2026.2.520
• Browser: [all ]

Bug Report

When the Grid is exported with child columns hidden with Multi-column headers, the columns headers are not exported.

Reproducible

1. Go to this Progress Kendo UI Dojo
2. Export the Grid

Current Behavior

The column headers do not all export:

Expected Behavior

The Grid should export all column headers like when they are not hidden - Dojo :

Workaround

Explicitly set the parent column's exportable configuration to true - Dojo:

$("#grid").kendoGrid({
    columns: [
        { field: "name", title: "Name" },
        {
            title: "Address",
            exportable: true,  //set to true 
            columns: [
                { field: "street", title: "Street", hidden:true, exportable: true },
                { field: "city", title: "City", hidden:true, exportable: true }
            ]
        },
        { field: "phone", title: "Phone" }
    ]
    //....
});

Environment

Kendo UI version: 2026.2.520
jQuery version: 4.0.0
Browser: all

Hi there, 

I am using Kendo UI version 2026.2.520. I have a gantt chart and the view options (day, week, month etc.) disappears when I change the width of the chart. However, when I change the version to 2025.2.520, the same width shows the view types. Is there some way to solve this issue so it was working as it previously did?

Here is the dojo I used

https://dojo.telerik.com/KQpoYmVQ