You forcefully tried to capture the airship which was carrying the orb with hacking missiles.

But the people on board resisted, the missiles exploded, which caused the airship to crashed on top of a bridge....

As a result, that made them notice the presence of a tracking device.

The person who was on board the airship instantly removed the stand from the orb, throw it into the river and escaped...

In the end, the orb ended up "missing" for real.