I’ve gotten this to re-occur in 0.9.0.22 by retiring a game, then returning to the main menu.
However, this isn’t a very pressing bug, of course.
"It is not death that a man should fear, but he should fear never beginning to live." ~Marcus Aurelius
Game: "Characters with a height advantage against their opponents are harder to hit"
Me: "That's not true, and my short axeman is living proof!"