Basically what it says on the tin. This is the first time this has happened for me, but at the very end of Wellspring: Attack with Golmag the wizard that's supposed to spawn on a platform spawned inside of it, so even when we eventually killed it waiting for its head to pop out from the geometry, the orb that drops that you're supposed to dunk is still inside the platform and it doesn't respawn somewhere else, rendering the activity impossible to finish I'd suggest maybe coding it to despawn after a bit and then have a yellow-bar wizard spawn somewhere in the arena to prevent issues like this.