Thanks again Scott for the links for Single player/solo rounds at Oakmont.
Here's a workaround for people to play & invite people to multiplayer games at Oakmont.
Use Opera Browser, Turn on the built in VPN in Opera & set to Asia (Yes Asia, Not Europe or USA) & then open Gameclient & set game, Then if you wish close Opera & then open your reg' Browser & game will still be there. (this works for most but not all)
Proton Free VPN is another alternative (Advantage of this is you only need to open your gaming Browser once after you've selected a VPN)
After you do the usual sign up, authorise & Download set the Server to a Calli' Server with lowest load & then follow the same steps as before with Opera Browser, Once Oakmont shows as a listed course then you can knock off VPN & away you go.