So I had done all of this, but interestingly, the only way I could get it working was by setting "ListOnMasterServer": true on only one of the instances. If it was true on both, joining the server would either fail to load, or would join the wrong server when using the "Continue" menu in game.
Works now though!
Just a question to see if it's possible since I haven't seen it, but is it possible to run 2 instances of the V-rising container at the same time?
I tried setting up a 2nd container added through the "Add Container" method and changing the ports and save information, and initially it worked, but then stopped responding.
Just wondering if there's some other service on there which would need to be made unique.
Thanks!