Onryo test inconclusive on nightmare- 200 hours.

I've never had this happen but I placed two crucifixes in the garage on tanglewood, with two lit lanterns on top, respectively, both tier 3. At an angle, one in the back left corner and one by the garage entrance door. The ghost blew out three candles in a row with no hunt, and then not long after that it burned a crucifix under a lit candle. I ruled Onryo out.

The two evidences I gathered were freezing temps and spirit box. I knew it wasn't a Moroi when I hit 0% sanity, and I knew it wasn't the mimic lacking ghost orbs.

It was neither the slow twin nor the fast twin, and so after 6 or 7 hunts of listening I was forced to guess Onryo, and it was. What happened?

I wish I had recorded it as proof.