UE 4.18 - Steam VR supersampling does not work

Hello to all, I’ve installed 4.18 version. I have switched several projects from 4.17 to 4.18. I’ve tried to launch Steam VR. It seems that, when I try to change the supersampling multiplier, no effect occurs.
I’ve tried also to start a new project (first person template) into the 4.18 version, but seems that it doesn’t work. Then, reading another thread, i’ve changed the “supersampleScale” into the “steamvr.vrsetting” file located in config folder of Steam, without results. The same projects work fine into the 4.17 version.
Any suggests? Thank you.

Solved via Blueprint with command r.ScreenPercentage :wink: