Solution for this topic
The issue is fixed in the following latest version of theme so please update your theme to the latest version using the plugin https://wordpress.org/plugins/easy-theme-and-plugin-upgrades/
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Thanx. It looks like it works perfectly. And could you add a function to make the thumbnails of the mini-list also change? Just add the “active” class to the “post slider item” container. What do you think?
One more option would be useful. Duration of the animation and to set this value in options. Now to work too fast to me. Think about it in the future.