Hey, great product!
Just a couple bugs I noticed:
Counterfeiting a Spoils should result in the spoils going to the spoils pile.
When under the enchantress's effect with a crown and no other actions in hand, gameplay appears to be in buy phase, but playing the gold results in +1card and +1action.
Enchantress on Crown is not a bug (assuming that you got the +1 Card, +1 Action for playing the Crown and not the Gold), because Enchantress says "the first time each other player plays an Action card on their turn" and Crown is an Action card also in the buy phase.
The reason that you are in the buy phase is due to autoplay that ends the action phase for you. This would be one of the edge cases where you should turn Crown autoplay off to be able to play it in the Action phase.
Counterfeiting a Spoils should indeed return the Spoils to the Spoils pile - and that's what it usually does. If it doesn't for you, it would be useful to have a game number to check what happened.