Definitely worth another go. It is indeed a touching experience. Beautifully done. Once again, the music is brilliant and the concept is quite original and well used. Really solid work.
A different issue I had now that I could progress in the game was that as I accumulated more and more cards, I kept begin forced to widen the window to fit them all. It eventually opened a second row but by then the window was already so wide that the lines of text become too long and uncomfortable to read. Also, in the moments when the cards start disappearing, being on the second row meant that I couldn't see what cards were disappearing from the top row and that's an important part of the experience. My instinct is to suggest that you stack repeated cards but that would lessen the effect of their disappearance, I guess.