Background: Turn 1 playing as Eltharion on Immortal Empires, version 2.1.1. Vanilla, no mods.
Issue: The city of Tor Yvresse and its surrounding buildings are floating above the ground on the campaign map. Due to the nature of a 2D image it may be hard to see, but the destroyed walls around the outside of the city and the small farm buildings, along with the walls in the back and in the front (the destroyed columns), are all floating above the ground.
See below:

DxDiag, save game, and modified log file posted below.