Steam Session Ping 9999

Hi, we’re having same issue. PingInMs variable in FOnlineSessionSearchResult always shows 9999 on listed servers. Every other information seems correct (such as player count, server name etc). We’re also using Steam, and are using lobby API (but just to make sure it wasn’t ports, we’ve opened 27000 - 27015 and 7777-8000 - udp and tcp).