Suspicion

A message stating that the Hidden Clear had resulted in Invalidation due to an error.

I checked my status window.

[Difficulty: Nightmare]

[Floor: 7th Floor]

[Level: 95]

[Willpower: 5,000/5,000]

[Skill: Line of Destruction (Epic+), Subspace (Epic), Hellfire Eruption (Epic), Sixth Sense (Rare+)(+2), Teleportation (Rare+), Rapid Regeneration (Rare+), Scorching Zone (Rare+), Flame-style Lesser Arrangement (Rare+)...]

My level hadn't gone up either.

There were no other rewards received.

Meaning, I hadn't obtained anything as a 7th Floor Hidden Reward...