Found a very strange bug while playing in the arena. I don't understand at all what it could be related to, so I'm posting it here. I go into the battle history, scroll through it, exit, and my next unit takes its turn. The one that was supposed to move simply skips its turn. Specifically: it doesn't wait, doesn't defend, and remains in the same place. In the history, there is no wait, damage, or defense recorded for the unit that skipped its turn. And the battle map cell – the same one – is 100% accessible. I've checked it several times in a row.