Fake focus on active window

I have Ubuntu 16.04(in Arch linux too) with XFCE4. After installing last Idea 2018.2 and 2018.2.1 I had a problem:

- I have some opened windows of Idea. They showed on desktop panel on "Window buttons".

- Focus pointed to rightmost button of Idea.

- I am changing workspace, and return to back.

- Focus pointed to rightmost button of Idea, but showing leftmost window of Idea.

- I am clicking into window of Idea and then focus pointed to leftmost window of Idea.

But I am expecting that focus of button and window of Idea are corresponding of each other.

https://youtu.be/l8IAPI8v6sk