I think Dawnseeker was using the Cheat Engine comment as an example, rather than saying anyone was cheating as I don't think any of you were.

However, this has happened to me when I had more coins than I should. One memorable occasion I got extra coins from a card I was trying to sell, but halfway through a Rune Temple run it popped up with the synchronize message, I refreshed and my extra coins had vanished.