In the Kendo ComboBox, the selection part is not working with shadow dom.

1. Reproduction:

Please look at the below links,

With ShadowDOM:

https://stackblitz.com/edit/angular-evkasb?file=app%2Fapp.component.ts

Without ShadowDOM:

An example is provided in the below link under 'ENABLING SUGGESTION' section

https://www.telerik.com/kendo-angular-ui/components/dropdowns/combobox/suggestions/

Expected Result:

When user type 'C', the first word starts with C in the list 'Croatia' is suggested and 'roatia' is selected. But as soon as I type 'y' next to 'c', the combo box is suggesting 'Cyprus' and 'prus' should be selected

Actual Result:

As soon as I type the first word starts with C in the list is 'Croatia' is populated in the Combobox and 'roatia' is NOT selected. So the user cannot type ‘y’ in this case. But the user wants to select ‘CYPRUS’ but 'Croatia' is filled as the input and Cyprus is not suggested.

I have attached the video for the difference between with/without shadow dom.

Also, If you need any additional information, I have created a support ticket: