1.4.1 fixes and improvements:

Fixed Automatons’ pathfinding on Rifts map – they should now use bridges instead of walking straight to the destination
Automatons can now build bridges
Improved citizen pathfinding
Snow no longer covers default roads in timelapses
Citizens now leave trails in the snow in timelapses
It is now easier to place a Gathering Post so that it reaches more resource piles on one of the Rifts map variants
Wall Drill placement is no longer blocked by a coal pile on one variant of the Crags map
Wall Drill shows the correct amount of available Wood in Endless Mode
The Scientific Method, vol. 2 achievement can now be unlocked
other minor bug fixes