I noticed that there are many units whose 3d models on strategic map don't scale. They are stuck at "Large" scale.
I noticed this first with horse versions of heroes, where soverign would scale and some other heroes would not (and would appear oversized, if using normal or proportional scale). Only if I set unit scale to Large, proportions between units are ok.
It happens with many monster too. For example, some shrills will appear small compared to the tile size, while some others will appear over whole tile (those don't scale).
There are many other examples.