Hi dears colleagues,
I have my problem after 3 hard days fixed.
The issue is definitely in the OS Windows 10.
After switching the HD button the Monitor goes OFF (not off only shows the black screen) after you can´t extend screen or switch to screen 2. Only screen mirroring works.
Also when you close Laptop lid the both of monitor goes off despite what you adjust in the Energy management or power options in Device manager for USB.
I tried to reinstall all graphic drivers but no success.
I tried to update firmware from the monitor.
I fixed the issue with the TeamViewer.
I connected remotely from another device and switched off this bad HD switch.
Now is again good and everything works.
Hope this helps somebody with a same or similar issue.
BR Rastio.