Oh you're not started to play from version 1.1.5.
Yeah than that definitely could happen. Some variable numbers can get mixed up when saves are transfered over mutiple version since I often added, fixed and adjusted stuff.
There might also be some other kind of bug, but that would be hard to check myself without playing the entire game on a fresh new save file to to verify myself.
Thanks for the report I will keep that in mind and someday replay the game to see if there is some kind of bug.