Description:
Opening the map editor fails (related to bugs: 3411737 and 3423960). After that, it's not possible to create a new game.
How to reproduce:
1) Start the game.
2) Click on "Map Editor" (nothing happens)
3) Click on "New" (nothing happens)
The menu entries' name may be wrong (my version is in Portuguese).
Log file attached.
FreeCol log
Fixed with commit #9364.