Casino editor when trying to place item and you don't have enough it shows message but the item remains until leaving casino
When trying to place an item and you don't have enough it shows a message but the item remains until leaving casino. This happened in firefox, not quite sure if it's a feature or a bug. If it's a feature, then I suggest clearing the item up as you won't have money coming in while in the casino. (Unless in the slight chance it's your casino revenue).

In the next update, when you try and buy an item you can’t afford the item will disappear when you are notified you cannot afford it.
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Animatic commented
It would also be a better user experience to gray out or give an other visual indicator of the item being too expensive.