Hi ,
I am looking into another issue that is nearly identical to the one you described. It looks like some lines of source code may be out of order for all config settings to be saved correctly. I am waiting for some developers to get back after the holiday break to confirm this. A work around for now would be to call UGameUserSettings::SaveSettings() twice (scalability settings look like they are being set after the settings are actually saved, so the new scalability settings don’t make it into the saved settings). I will update you when I get some more information about what is happening here.