The oracle lied to my face.
However, I expected it to.
On Monday, I visited the oracle, and it told me that Chaos Lord would be the next False God I would encounter.
I knew I couldn't beat him, so I didn't fight any False Gods that day.
The next day, I visited the oracle, and it told me the Decay would be the next False God I would encounter.
Now, I still hadn't fought any, but now had proof that the oracle is a dirty lier, due to the inherent contradiction.
This was made worse by the fact that the next day, still not having fought any FG's since Monday, was told that Rainbow would be my next opponent of the Level 6 variety.
This may not be a bug, per se, but, if we are to maintain the illusion that the oracle is all knowing, then something should be implemented to stop it from being caught in a lie.