As I stated in my other comment, I figured out I somehow missed saving the bindings for Vive and Oculus. If you add the "Trigger" action to the trigger button you should be able to complete the training and play with the spells.
Viewing post in Disciples of Elemental Harmony jam comments
That did work, but then I couldn't figure out how to make a fist with the Vive controllers. :D Part of the problem is also that the hand skeleton doesn't really match what I'm supposed to do (e.g. when I pulled the trigger, it did accept the first gesture but the hand skeleton actually had all fingers except the thumb folded into a fist).