Factorio Forums

Simply, attempt to join the server, it had 1 client on it already. Instant desync after map finishes downloading.

Here is the desync report from onedrive cause it is over 400mb:
https://1drv.ms/u/s!Ag_oGXM7aD7ngQ4kKy5YnZ3Q1kvJ

The RSO code you're using is not MP safe. It has the same problem as it did before: it runs code differently after saving and loading. The main problem is the initDone variable which isn't in the global variable so it resets to false every time someone loads the game to join in MP and causes the code in RSO_init to run differently for a player joining vs one already in the game.