Bug report

aria-live="polite" in file upload is not read out to screen readers.

Reproduction of the problem

https://demos.telerik.com/kendo-ui/upload/index

Upload an invalid file and see what the reader says

Tested with Jaws and NVDA

TicketID:
1713170

Environment

Kendo/Telerik version: 2026.1.415

Broser: all

Bug report

Reproduction of the problem

Approach described in the documentation is not working as described after version 2024.4.1112

Dojo: https://dojo.telerik.com/pXPIOvsq/2 - works with version 2024.3.1015, broken in version 2024.4.1112

Current behavior

Splitter cannot be made resizable as documented.

Expected/desired behavior

It should be possible to change the resizable option for panes.

TicketID:

1713187

Environment

• Kendo/Telerik version: 2024.4.1112

Bug report

Scrollable menu opening wrong menu on mobile

Reproduction of the problem

This is reproducible in Chrome developer tools - using iPhone 14 Pro Max

Dojo: https://runner.telerik.io/fullscreen/jtDsGBpV

1. Scroll a little to the right to have Ladies partially hidden

2. Click on Ladies

3. Notice that the ladies is focused and scrolled to be fully visible but the opened submenu is Mens

Environment

jQuery: 3.4.1

Kendo UI version: 2025.1.227
Browser: [all]

Bug report

In the Speadsheet, the items of the DropDownButton for the sheet tabs are hardcoded and cannot be translated

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/EtdKrzwo/2
2. Click the DropDownButton for the Food Order sheet

Current Behavior

The DropDownButton's items are not translated

Expected/desired behavior

The DropDownButton's items are not translated

Environment

• Kendo UI version: 2025.3.1002
• Browser: all

Bug report

Notifications overlap when multiple invoked on mobile. Tested on iPad Air 13 2025 v18.6 and iPhone 26.3.1

Regression with v.2023.1.314

Reproduction of the problem

https://demos.telerik.com/kendo-ui/notification/index

Click on "As a popup at bottom-right" multiple times

The notifications are overlapping and broken into multiple lines



Expected/desired behavior

Notifications should not overlap and rendering on a single line

Environment
Kendo UI version: 2026.1.415
Browser: [ ipadOS 17.1.1 Safari ]

When you have a simple kendodropdown list that is set to adaptiveMode = "auto", resizing the browser throws. This can be reproduced on your demo pages.

Steps to reproduce:

1. use this Dojo: https://dojo.telerik.com/LHJLQgzy which was created from your demo page
2. Ensure the browser is narrow enough to be considered mobile
3. run the project
4. confirm dropdown is functional
5. resize the browser to desktop size
6. the dropdown list stops working and throws

kendo.virtuallist.js:2890 Uncaught TypeError: Cannot read properties of undefined (reading 'style')

Current behavior

The following demo should export the Charts to the generated pdf file, but it does not;
https://demos.telerik.com/kendo-ui/pdf-export/index

Expected/desired behavior

It should export all elements within the container. This works properly in older versions:
https://dojo.telerik.com/CfWcHUQK

The horizontal space between all OrgChart nodes on the same level is one and the same and it is equal to the horizontal space needed to show the child nodes of the parent with most child nodes. It is represented by the red squares on the image below. This results in excessive empty horizontal space between nodes with no child nodes or no visible child nodes.

This may be observed on the following Dojo runner. Currently the OrgChart has empty space between the first level nodes, and also there is empty space after the last node:

Suggested behavior:
There is no empty horizontal space between nodes on the same level - highlighted in yellow on the image above. In the above scenario, there should be no empty space between the first level's second and third node and no space after the third node, which may be observed, when the first node has no expanded child node:

Bug report

In a Grid with virtual row and column scrolling enabled, if there are large number of hidden columns, the horizontal scrolling is very slow.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/EWeVaQOc/12
2. Try to scroll horizontally

Current behavior

Horizontal scrolling is slow

Expected/desired behavior

Horizontal scrolling should be smooth

Environment

• Kendo UI version: 2023.3.1114
• Browser: [all]

Bug report
ScrollView prevents Nested MediaPlayer volume scroller from scrolling


Reproduction of the problem
Dojo: https://dojo.telerik.com/ateLaQoC

Scroll to 3rd page

Scroll volume scrollbar

Expected/desired behavior
Volume scrollbar shall be scrollable


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

When the RowHeight of the Gantt is enabled and the planned tasks are shown, the height of the row in the timeline is miscalculated and that creates displacement. 

• https://dojo.telerik.com/EgiGiXUF/5 

Additionally, the task dots used for the dependencies are misplaced in the same scenario as demonstrated in the dojo above. 

Hi,

if you load the signature component when the mobile device is in vertical position and then rotate the device in the horizontal position the component doesn't detect changes and the signature capture doesn't work as it should (there is a span between the mouse/pen and the signature line).  The same also happens in browser if you change the browser window size so much that the signature component window shrink. I noticed a strange behaviour in signature popup on my project, but you may also try it on your demo component: https://demos.telerik.com/kendo-ui/signature/index .

Thanks

Bug report

When using the Signature in a Wizard the the drawing line is being offset.

Reproduction of the problem

1. Run this dojo
2. Try to draw a signature

Current behavior

The line is offset and the drawing looks distorted.

Expected/desired behavior

Drawing line should be applied correctly.

The issue might be related to #7108

Environment

• Kendo UI version: 2022.3.1109
• Browser: [all]

Bug report

When the timezone of the machine and the timezone set in the Scheduler are in different days, the currentTimeMarker is not displayed in the Timeline view.

Reproduction of the problem

1. Change the timezone of the machine to 'Fiji' or another timezone, thus the 'Honolulu and the chosen timezones are on different days. For example, when it is 3 am on 01.06 in Honolulu, it is 1 am on 02.06 in Fiji.
2. Open the Dojo linked here where the timezone is set to 'Pacific/Honolulu' - https://dojo.telerik.com/@NeliKondova/UVuDAJib

Current behavior

When the timezone of the machine and the timezone set in the Scheduler are in different days, the cusrrentTimeMarker is not displayed in the Timeline view.

Expected/desired behavior

The cusrrentTimeMarker should be displayed in all the views.

Environment

• Kendo UI version: 2023.1.425
• Browser: [all ]

Bug report

In RTL Scheduler dragging of events does not horizontally scroll is not possible

Reproduction of the problem
1. Open this Dojo example - https://dojo.telerik.com/HrVYvFSY

2. Drag the Meetings with Alex event to the left. Scrolling  to non visible slots not possible.

3. Scroll to the left to find an event in the middle of the day, start to drag it, the scheduler scrolls horizontally to the beginning of the day

Expected/desired behavior
Scrolling to the left shall be possible as it is in the non LTR Scheduler

Environment
Kendo UI version: all
Browser: [all]

Hello,

We would like to request this feature to expand on a Grid components Options.

Provide a built-in way for end-users to redefine or rename a Grid column's title directly through the user interface. Currently, if a user wants to change a column header from "Title1" to "Title2”, developers must write significant custom jQuery to modify the DOM or update the column via set options.

This is a functional request from our users, that we would like to provide for them.

Thanks,
John

Bug report

DropDownList: dataItem(e.item) returns undefined when selecting across different groups

Regression since 2026.1.212

Reproduction of the problem

1. Open the next Dojo: https://dojo.telerik.com/aVJUwDTZ

2. Open the DropDownList.

3. Select an item from a group different from the one currently active/selected.

Observe the console for this.dataItem(e.item).

Current behavior
undefined is logged for this.dataItem(e.item)


Environment
Kendo UI version: 2026.1.212 or newer
Browser: all

Bug report
When using an Editor in Inline mode and dragging an image a JavaScript error is thrown: Uncaught TypeError: Cannot read properties of null (reading 'nodeType')

Reproduction of the problem
Open the Dojo - https://dojo.telerik.com/eBsLBgvN

1. Insert an image and some text into the editor.
2. Select both the image and text together.
3. Start dragging by clicking on the text area
Exception occurs

index-esm.js:17572 Uncaught TypeError: Cannot read properties of null (reading '_destroyResizeHandles')

Environment
Kendo UI version: 2026.1.325
Browser: [all ]

webpack_chart_test.zip

When a non functional template is used for the labels in the Chart in webpack project, an error is thrown.

1. Run the attached sample and observe the behavior.

   npm install
   npm start

The following error is displayed: labelTemplate is not a function TypeError: labelTemplate is not a function

If the template is removed or replaced with funcitonal template, the Chart displayes as expected

Workaround:

resolve: {
        mainFields: ['es2015', 'es', 'module', 'main', 'browser']
    }