alpha version x64 0.11.22 and as far as I know, the version hasn't changed.

Haven't played in a couple days/weeks, it is current release, but for some reason i can't build substations anymore. it is researched. and i have built a few. but upon loading this game, it's not in the list. As far as I know nothing has changed. maybe save is corrupted? but i can't 'research' it ...