I encountered an issue in a recent game:
I played a Spell Scroll to gain an Inn.
I am aware that if the Inn is shuffled into the deck, it can no longer be played by the Spell Scroll.
However, I had other Inns in the discard, my understanding is that it should be possible to shuffle those into my deck, and still play the one that I gained.
However, the interface does not provide a way to do that - it merely allows me to select how many Inns I intend to shuffle in, and if I select any then the Inn that I gained, fails to play.
To me, this seems like an interface bug.
Yes, unfortunately handling this situation correctly is not possible at the moment.