AI Uplink Geo Hitbox

I was playing as Vandal and double jumped onto a small grey/black box to get an angle on a team on the covered catwalk in AI uplink. I shot at a triage below and instead of hitting the triage, all the bullets hit an invisible hitbox that I am assuming was connected to the platform.In the screenshot, you can see the impact effect from the bullet hitting the "wall" when I am aimed right on the enemy.