Hi,
As stated in changelog of version 2022.2.802 'state' prefix removed from CSS state classes.
But php wrappers do not reflect these changes. For example, wrapper for TabStripItem still requires old class name, as a result TabStrip selection is broken:
<?php
namespace Kendo\UI;
class TabStripItem extends \Kendo\SerializableObject {
public function createElement() {
$element = new \Kendo\Html\Element('li');
if ($this->getProperty('selected')) {
$element->attr('class', 'k-state-active');
}