
UPDATE: I also just added some lava gatherers to the overworld map.
Going up the mountain you would see the player fall below the path graphics. This should be fixed in the latest version.
In the brick village, you might have encountered an invisible block that prevented you from leaving through the main entrance. I figured out the cause ... it's an interesting story, but I will spare you the details. If you already saved the game after visiting the brick village, you may encounter an invisible block. But for any new games it should not happen.