Kendo material css doesn't work with groups in dropdown tree

[Joe]

In my project I use these css

/kendo-material/kendo.common-material.min.css" rel="stylesheet" />
/kendo-material/kendo.material.min.css" rel="stylesheet" />
/kendo-material/kendo.material.mobile.min.css" rel="stylesheet" />

I tried to use group in kendo drop down tree as in this example

https://dojo.telerik.com/iboWAviK

but

I get broken css


Do I need to update the css?

[Neli]

Hi Joe,

I tested the appearance in the provided Dojo example, but the checkbox seems as expected on my side. I also tested using the mentioned Material LESS styles with version 2021.1.224.  Here is a screencast. Please let me know if I am missing something. Please confirm if both - the scripts and the 

Please note that the R1 2023 was the last official release of Kendo jQuery, where Less Themes were supported and shipped with the product. If you decide to upgrade to a newer version you will need to migrate to SASS themes:

- https://docs.telerik.com/kendo-ui/styles-and-layout/less-themes/less-themes-migration

Regards,
Neli
Progress Telerik