Hi,
I had the same problem, I have not found any other solution than adding a function on “OnlineSubsystemSteam.h”
FString FOnlineSubsystemSteam::GetSteamLanguage()
{
FString sLang= TEXT("english"); //Default
ISteamApps* pSteamApps = SteamApps();
if (pSteamApps )
{
sLang= FString(ANSI_TO_TCHAR(pSteamApps->GetCurrentGameLanguage()));
}
return sLang;
}