Fonduelepsy

Fonduelepsy is a rare (in-universe) encephalopathy where the nervous system, brain and wider template layers are suddenly/progressively, and quite literally, "spontaneously melting", hence the root word fondue from the French word. refering to a sort of meal consisting of a boiling pot with meatloaf or any sort of thin sliced flesh heating in water atop of a burning stove, pierced and eaten with meatforks directly in the pot as it is devoured. It is experienced by some spies and universe travelers due to glitches and attacks while interfacing between realities and worlds, and having a sort of functional bug occur which can overload and overheat the brain, short-circuit the fabric of the nervous system and fragment the body template. In some cases it is caused by radioactive decay of brain cell data.

There is a sudden onset and a gradual onset type of fonduelepsy. If untreated, the symptoms and melting result in final death of the physical body.