Spawning players under the map

[Heritagefarms]

My cousin is trying to join my game that I usually play as single player to help on my farm. We’ve done this several times with no issues but this time, it takes him a long time to synchronize, and when it’s done, it spawns him under the map and he can’t do anything but alt+tab out. If we start a new game it works fine. It’s only with this particular save. Any ideas?

[Heritagefarms]

He is getting this error in his log when it happens:
Datas/scripts/GUI/hud/Ingamemap.lua(672) : attempt to index field 'player' (a nil value)

[grizz4321]

Do you have any auto load mods installed? I usually find this type of issue is caused by those mods.
Specifically if you have bales or logs on the trailer and close the game or restart the server it fails to find them on restart which causes a endless loop and prevents people from syncing.
If you do not have any mods like this you will need to look at the full game logs to see what is causing the error.