Try clicking once on anything in the game, that usually gets it to work for me, but I'm on Windows, so I'm not sure.
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I couldn't screenshot it, but I found that there was a gender-related issue when you played a queen, rather than a king. It's not that important, and you'll probably fix it in the future. If it helps, it was happened when a knight went on a quest to find gold and came back empty-handed, the second bubble of dialogue he said.