Similar experience here, all on Windows. Dwarven and Magic Keys swapped, tasks in city display twice in one dialogue box, tasks don't update immediately (I found opening and closing inventory would force the text to update), and specifically in the city I've had several freezes/softlocks, usually on the last couple of customers or after selecting the wrong item a few times and trying to go back to the map. Other than that it's a lovely little game with nice art; I'd love to see it scaled up into a "full" game (more than just a GameJam submission I mean, like a longer-term project) with more updates, both gameplay wise and "content" wise.
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Sadly both of these a known to me. Couldn't track the problem with city phrases down yet, and and "undefined" button is a problem with RPGmaker. I will probably leave them be since, if I continue developing the idea, I'll rewrite in on Godot from scratch. Treat the current version as a very rough prototype with just the basic mechanics
For the time being until the Godot rewrite is out, what's been helping me with the city softlock is getting down to where it says "1" on the bell, clicking it to skip that customer, and then either leave then or sell to the last one. Not foolproof, doesn't always prevent the softlock, but it does it more often than not for me at least.