Tried, changed nothing. It’s not the RAM which is lacking, my computer (and the computer of my friend who also tested the game) can handle the entire game even with the new island. In studio it always works perfectly, so I assume that something wrong happens when people try to join (the game window is expected to freeze for a few seconds, but then should be playable instead of kicking the player out after the game is loaded).
Because a message shown after being kicked looks like this…
… I think this bug could be related…
…but this time, it happens every time a person joins because of the size of the place.