If the designated spawn area is completely filled with existing units, dead bodies, or player-built towers, the engine faces a paradox.

If you are already in the Overworld and it still fails, check for localized pathing obstructions:

The gateway initial check confirms a mob should spawn, triggering the wave. At the exact moment of physical manifestation, InControl intercepts the spawn and deletes the entity because the player hasn't unlocked that tier yet.

in a mining dimension or custom void world.

High-tier trials like the Apothic Pinnacle attempt to spawn custom-scaled bosses, including massive Giants. If the vertical ceiling clearance (Y-axis) is restricted by blocks or a low sky-limit ceiling, the bounding box collision will fail.

: While the error is often misleading, some gateways require a large (e.g.,

, players activate "Gateways" that summon waves of enemies. If you successfully defeat a wave, the next one begins. However, if the environment is too cramped or obstructed, the gateway "implodes," instantly ending the trial and denying the player rewards. Common Causes for Implosion Small Enclosures: