Any way to get this to work? I get configurations to work once I add a non steam game to steam, but the Big Picture overlay does not work properly. I press the home menu and it activates in the background, but not visually. This is a problem since one of the most popular configurations brings up a touch menu when the left pad is pressed, and the touch menu is part of Big Picture's overlay. So it's working in the background, but I can't see it visually, which is a necessity.
I've tried removing dxgi.dll and d3d11.dll and even all the galaxy related files but to no avail. I have also disabled the overlay within GoG galaxy and attempted to run it without galaxy at all. I've also ran everything in administrator mode with no results.

Inquire at Steam.

I rarely use Big Picture but the controller worked nonetheless. Are you using Steam Beta? I tried Beta recently when Automators was new but damn, every other function stopped working so I went back. Less features but at least it's stable.

I should mention I didn't use Galaxy, I deleted no files and I played v1.12 and v1.21.

I am in the Beta, and the controller configurations DO work, the issue is the overlay is not showing up, so visual functions of the controller, like the number pad setting, do not appear on screen, net work in the background, rendering them unusable.

Have you checked the Steam Discussions if anyone else have a similar issue? Also, if not, try recalibrate the controller. If you haven't done this before, make sure to read up in case if there are known areas where you will lose setups for games.