This happens if you cheat-unlock Thanos (Infinite) without beating the story. Go to the Depot and re-equip the Thanos costume. The model will load.
Corrected a bug where players had insufficient Ability Orbs to max out all character powers. Players can now re-open treasure chests in the (Castle Doom Corridors) to obtain the missing orbs. Retry Button: Restored the "Retry" option in Infinity Trials Marvel Ultimate Alliance 3 Update 4.0.1 Cheats
The full, accurate text for the game version is: This happens if you cheat-unlock Thanos (Infinite) without
One of the most powerful "cheats" remaining in update 4.0.1 is a specific ISO-8 property that can break the game's combat loop. Corrected a bug where players had insufficient Ability
Update 4.0.1 requires you to have downloaded the "Shadow of Doom" DLC pack from the eShop (Free patch data). Cheats cannot bypass the DLC license check. Download the free DLC from the Nintendo store.