Impossible to end current turn. I tried to save the game for the bug report and the game crashed on save. I restarted the game, loaded the auto save and then it worked, so you guys may not be able to reproduce this via the auto save file.
Crash zips + auto save file here:
[url=http://uploading.com/files/94ea2f61/savegame_and_crash_zip_files.rar/]savegame_and_crash_zip_files.rar - 11.1 MB[/url]
