So I believe, based on lack of response from technical team, that the environmental parameters are a product of the server you land on when you join the game. From within the environment you land, they can control the timing on day/night. However, because you land on separate servers (I’m guessing here with some IT insight) they are not able to coordinate your environment with that of your partners.
Another interesting artifact occurred the other day with me and my girlfriend: I logged into my account - after syncing our sensors - I jumped on ahead of my girlfriend into the ride. She joined selecting me from the listing of available rides and proceeded to speed up. However, along the way, the environment separated us involuntarily. I turned around but was not able to ride with her/turn in her direction. My sense - again - server separation. Just a guess!
We still love it but the nuisance artifacts are frustrating.