Hey! I was just playing through the tutorial for kicks and during the crossbow level, I equipped the crossbow immediately after picking it up like so Left Click on crossbow, drag it to the wrong spot in the inventory, it auto-goes to the crossbow slot. I then fire at the diggle and kill it. Nothing happens... Also, the Tutorial starts you with bolts, which seems weird, considering it asks you to find them.
Tutorials are sort of all kinds of broken, though not crashy as far as I know anymore. I'm sure they will be reworked at some point. Such is life for an ever evolving game.