Hi, I am Channie, been playing a couple days now and I have a question. After building the dam, I started finding pebbles. I have found the same pebble twice, (the one that looks like a ruff diamond maybe?), It is a common one, but anyway, I have found it twice, watched the child carry it to the hut do the little dance and all. Problem is, it isn't showing up in my list of collectables. I have also found 3 other pebbles, all of those showed up, all the other collectable I have are there as well. Anyone else have this or does anyone have any suggestions?

TIA,
Channie