Lost all the rooms and dungeon core, if import a map and increase the number of parties.

Windows 10 64 bit, 8 Gm RAM, Intel(R) Core(TM) I7-4500 CPU1.80 GHz 2.40GHz GPU: AMD Radeon R7 M265, Intel(R) HD Graphics Family. Version game 1.40f15

See video.

I imported my map Bushido, increasing the number of participants from 2 to 3. All the rooms and the dungeon core is gone, in their place are left the dirt. Defenses defenses of the Empire became Underlord No. 3. Tile Empire - they are neutral tiles.

War for the Overworld Launcher Log.txt

output_log.txt