headless Chrome - why doesn't it create screenshots?

Question

I am following this manual

But for whatever reason my command in CLI does not produce any image:

C:\temp2>"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --headless --disable-gpu --screenshot http://www.google.com

• I have Chrome 62 (59+ needed).
• I have full rights to C:\temp2
• When I run only C:\temp2>"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe", Google Chrome starts up which means that the path is correct.

I have Windows 7 Pro SP1 64bit.

What could be wrong?