Hi!
This bug occurred on the PC client.
I seem to be experiencing a bug with the card Charred Foyer // Warped Space with multiple copies of Warped Space unlocked. E.g. with Questing Druid // Seek the Beast The UI gives me a choice of casting either the creature or adventure half for either its usual mana cost or 0. When I select that I'd like to cast it for the full mana value, the client then asks me to select a warped space, then casts it for 0. So I can't seem to cast it for full mana value. This or similar has occurred multiple times when having multiple copies of Warped Space unlocked. I'm not sure if I'm doing something wrong but the game won't seem to let me cast the spells for the full mana value and save the free cast for another spell.