Hmmm not sure what happened in the windows build for you, sorry you had that experience. For what it's worth it seems to work on my end.
Thanks for the kind words! The main problem with casting the spell without holding it is that if you have a projectile it's hard to see the results cause you're holding the book in front of your face! You're definitely right that the process could be smoother and clearer. Obviously chalk it up to limited time, great points if we ever do a V2 though!