Erm... The power of Christ compels me to withdraw my false accusations. I believe I was possesed by one of those Aztec demons and I was helpless to fight its vile machinations. I will retreat to a distant, undisclosed, monastary and pray for my redemption for the remainder of my time.How dare you! The Augustus would never commit such a horrific deed! Who's paying you for spreading such disgusting lies? House Doukas? Barbarians from the East? It doesn't matter - expect a visit from agents of Skrinion Ton Barbaron. The imperial interrogators have their ways of making scum like you sing like a bird. Your employers won't save you - your fate depends on the mercy of the Throne now.
Now, with that out of the way, let's focus on the future of the Empire. I'm glad to hear you're persevering, even with patch changes and corrupted saves throwing you curveballs. I guess that, as long as you can keep the Aztecs from attacking during the CKII phase, you might be in a better position to deal with them in EUIV (when you no longer have to worry about the complete destruction of your Empire in a few short wars, or all those uppity Doukai who stand ready to challenge your claim to the throne).