I am attempting to create a quickplay circuit and I have everything working except the spawnpoint. I have a SpawnSphereMarker in my main prefab named prefabfilename_standing_spawn which should work AFAIK. My spawnpoint however ends up underneath the map. When I look at the official quickplay circuits that seems to be the way it is done, that is with the prefabfilename_standing_spawn naming scheme but no reference in the JSON file. The circuit I am making is for the Endurodrome and I have attached the current state of my mod. I hope someone can help because I am a bit stuck.
I'm not sure if it will help but have a look over the code for my quickplay pack and see if it can help guide you, https://www.beamng.com/resources/highdefs-time-trial-pack.2772/
I didn't tested if the issue was what I spotted, but I think it should be a step in the right direction : Your .json is named endrurodrome_race while the rest of the files are named endurodrome_race.I think you've typed one 'r' too much. The rest of the files seems to be in order
