I've had the preview not matching the actual orders too. Not always, but at least once.
But the bigger annoyance for me is the piles of silver keys. I unlocked the one recipe that needed silver keys. But now they aren't useful at all for gameplay. Decor isn't useful for gameplay and that's all that silver will do. At least gold keys buy appliances and bronze buys ingredients so they move the game forward. But it seems 8 of 10 of the rewards are silver keys.
The drop rates for keys seem really out of balance. I'm pretty much ready to throw in the towel on the whole thing because it's just not fun. After making 15-20 bakes to get something useless is annoying.