Does this demo still work on Unity 2018.3?

I compiled this on two iOS devices, but the app never gets to ExamplePlayerScript for sphere placement... I've been able to go from the worldmap scanning to the connection screen to the lobby (which is blank with a ready/unready button). Going to keep debugging, but wondering why I can't seem to get this working to place spheres. On unity 2018.3, but also tried 2018.4 and 2018.2 with same results.