I ‘d installed mods with the manager. Game crashes some times, i deinstalled some mods than, after it didnt work anymore. I were not able to create a new big map. Then ive installed the game new. Got the new version, but cant create a big map neither… I cant remember if it said 64 bit in the lower right hand corner before i installed new, but now it doesnt..
May I assume you use the GOG version? Unfortunately the 32bit was put there by accident for download. We are in contact with GOG to get that fixed. I will keep you updated!
EDIT: A quick update: GOG has now the 64bit Version available for download which should fix your problem! However I would not recommend using the available patch, but the full download. Sorry for the inconvenience!