Crash after launching multiplayer local network game

[jacben]

This crash occurred each time we tried to launch a 2-player local network multiplayer game, both with AI and without AI. Crash dump attached.

[string "scripts/menus/network.lua"]:226: bad argument #1 to 'match' (string expected, got nil)
stack traceback:
[C]: in function 'match'
[string "scripts/menus/network.lua"]:226: in function 'callback'
[string "scripts/guichan.lua"]:347: in function <[string "scripts/guichan.lua"]:345>
[C]: in function 'run'
[string "scripts/menus/network.lua"]:264: in function 'RunJoinIpMenu'
[string "scripts/menus/network.lua"]:952: in function 'callback'
[string "scripts/guichan.lua"]:347: in function <[string "scripts/guichan.lua"]:345>
[C]: in function 'run'
[string "scripts/menus/network.lua"]:969: in function 'RunMultiPlayerGameMenu'
[string "scripts/guichan.lua"]:1632: in function 'callback'
[string "scripts/guichan.lua"]:347: in function <[string "scripts/guichan.lua"]:345>
[C]: in function 'run'
[string "scripts/guichan.lua"]:1659: in function 'BuildProgramStartMenu'
[string "scripts/guichan.lua"]:1671: in function 'RunProgramStartMenu'
[string "scripts/guichan.lua"]:1831: in main chunk
Stratagus crashed!
A mini dump file "crash.dmp" has been created in the Stratagus folder.
Please send it to our bug tracker: https://github.com/Wargus/stratagus/issues
and tell us what caused this bug to occur.
crash.dmp