Ok, I took time to read the whole thread and didn't find this one in there.

I just finished the statue, and was looking for a master builder to shape the blue pearl. The first one I located (using the detail screen) is "stuck" in the ocean at the top of the screen. All I can see are his feet and about 1/2 the white circle showing his location. I can't move him, or select him except through the detail screen. He's been there for over an hour. When I have him selected, his activity bar shows him doing different things, like washing face etc, but these things just "flicker" in the bar very rapidly, and rotate randomly. I have now finished the rest of the puzzles, but he is still stuck up there. I just tried closing the game and reopening it, but he's still where he was.
This isn't a huge deal, and isn't affecting my game play, but thought you might want to be aware of it.