How we found out? We knew from the start there would be a discrepancy. Early testing pointed to this problem. And we warned every superior up the chain. But in the end we were ordered to just put a warning on the scroll.

We were only taken serious after a junior magician thought it was funny to teleport an elephant into their observatorium before exams and neglected the warnings. That is how the Mana Void of Barkley Academy was formed.

The superiors were out for blood when the first court summon scrolls appeared, using competitors teleportation technology. That was until we gave them a copy of our manilla scroll holder full with communication of them neglecting to heed our warnings.