KendoGridColumnGroup throwing warnings in console

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Felix
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Felix asked on 05 Dec 2025, 01:17 PM

Hi,

I've implemented a <kendo-grid-column-group> in my Grid and discovered this lead to warnings being plotted into the browser developer console:

You can easily verify this by the official example:

https://www.telerik.com/kendo-angular-ui/components/grid/columns/headers

-> Edit in -> Stackblitz -> Open Console

 

I'm working with the latest Kendo version 21.2.0 and ng 21.0.2.

Is this a known issue? Thanks in advance!

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Yanmario
Telerik team
answered on 10 Dec 2025, 06:37 AM

Hi Felix,

Thank you for the provided feedback.

The warning is known and already fixed in our development version of the component:

https://stackblitz.com/edit/angular-tpcsrevx

I hope this helps.

Regards,
Yanmario
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