Have you tried reinstalling the game? If reinstalling doesn't work, you can try manually deleting all the files. On windows it is C:\Users\(user)\AppData\LocalLow\ChibaiGames\Dungeons and Depravity
On Android it is Android\Data\com.ChibaiGames.DnD
Removing these folders may fix things that causes the game to break when updating from an older version. This is where the save files are located. You can also back them up.
I'm not sure what's wrong with the version 0.1.2 saving, but I have no plans to fix older versions as of now.