Characters Invisable?

Probably a good idea to reinstall.

ETA - It does sound somewhat like the Luft-Word-Balloons quest. I didn't complete it until just now. Most of the characters were inside one brown house. The brown house was destroyed. Tapping on the brown house did nothing. The problem was that the long chain of thumbs was invisible due to the house being destroyed. Even though invisible, that long chain of thumbs was pushing the destruction icon off to the upper-right. When I found it, the house was rebuilt and the thumbs were visible. Then tapping on the thumbs finished that task.