A thought: The AOA indicator is displaying a measured AOA from a vane on the side of the nose. Like all measurements errors are possible.
The aircrafts 3d model is just a representation of the plane and isn't really important as far as the flight model is concerned. Anyone remember the early problemd with the 109 flying sideways when RRG were developing it?
Could this be a situation where the FM is right but the instrument and 3d representation is wrong? We need to know what figures the FM is using before we know whats really going on!