Locked Maps Bug

[sherbicide]

I have been playing the game for weeks now and recently been trying to finish the desolated wasteland. But for some reason after my most recent attempt the game decided to lock the last 3 maps again. Is this a known bug? My steam username is aromph and have played for around 200 hours.

[sherbicide]

I actually finished the dark moorlands again to see if it would unlock any of the other maps but the peaceful lowlands is still locked for me. It may have been because of a crash that has happened a couple of times where the game stops responding?