did you think it's impossible to win and therefore just didn't bother to check?
savegame: https://www57.zippyshare.com/v/BQQBTtdp/file.html
EDIT:
restarted a new scenario from main menu (reloading from above save did not help), replayed, this time it unlocked properly
@hundread1800
Hey there.
Sorry to hear you had issues initially but glad to hear it's worked the second time around. We'll keep an eye out for further reports of this issue.
Thanks.
Thanks for this @hundread1800 - as we're not members of the development team directly, we don't have the resources to look into your save file to find the cause, however it'll be noted should we have any further reports of this!
devtrackers.gg