I had this issue occur as well today except I wasn’t using the spacebar. I would drag a pack into the middle and then the pack disappears and my pack count would drop by one. No cards would pop up to open. Do the cards still get added to the collection in this case? Collection doesn’t show an exact number if they exceed 9, they just say 9+ so I cannot calculate the card count and make sure I got all my packs worth of cards.