This might be the same or a similar issue, so pardon me if it’s taken care of…
I just had this Bandit marksman move down from this elevated tile, back up this elevated tile, and back down this elevated tile again.
"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!"