A tiny bug. Has happened a few times during the last days. When selling everything from inventory (happens when selling treasures) and there's more than fits the screen at first then, after scrolling down, some items won't show. Having scrolled down and sold everything there I took the 1st picture, then clicked reset and selected treasure again to find another full row or treasure (picture 2).
I can't explain this very well (nor can I demonstrate this until I am able to log-in again) but when I am selling a small handful of Rare/Common/Uncommon treasures, the top row of treasure disappears when I try to scroll upwards, similar to this bug. Resetting and selecting treasure again fixes this.