Update.
From at least 5.3 you need to use [SystemSettings]
and [SystemSettingsEditor]
https://dev.epicgames.com/documentation/en-us/unreal-engine/console-variables-cplusplus-in-unreal-engine?application_version=5.3#loadingconsolevariables
Update.
From at least 5.3 you need to use [SystemSettings]
and [SystemSettingsEditor]
https://dev.epicgames.com/documentation/en-us/unreal-engine/console-variables-cplusplus-in-unreal-engine?application_version=5.3#loadingconsolevariables