Multiplayer game error

[halaiku]

I'm trying to set a multiplayer game over LAN with the following: on the PC who hosts the game, I generate a map with RMG, and then I edit and save it.
The game is created, the guest can see the server, but when he tries to join my game, gets a error message (The map checksum is incorrect, error code 0.2.0). This is because I edited the RMG map, but I don't know if there is another way to play a game in this conditions.

[Zmeio]

try to give a name to the map and copy to both PCs