I'm trying to make the game that builds its own maps/rooms. For some reason, in preview mode, I get this strange error when it starts creating objects, though it doesn't affect anything and the world loads just fine.
When I load it from Dropbox, the error doesn't appear. So maybe it's just an issue with preview mode.
To test this, go to the example above and press 1, 2, and 3 in that order. Please let me know if you get this error.