My wall started to get borken when i repair floor under them nothing happened, but when I save game and load that game walls were OK. Also my survirvor lose their armor.I dont know, what to do, if it is bug or something...
It is a bug.
And we did realize it that it is a bad feature to let rafts and walls corrupt somehow, it will be removed in the next update.
Armors' lost and rafts/walls ' recovery (visually only, though) will be fixed.
Thanks for your feedbacks. :D