While playing a self-mill deck with adventure cards, I attempted to reanimate a haunted dead while there were other castable cards in my graveyard, hand, and exile zones. When prompted to select cards for discard, tapping the desired card resulted not in the card being selected, but in my hand, grave, and exile zones being slightly rearranged and the desired card remaining deselected. Double tapping seemed to result in my cards first rearranging themselves, then the wrong card being selected. I ran out of time, discarded my removal rather than my narcomoeba, and lost as a result.