I've just attempted to upgrade one of my route (Vosges 2:458053:101070:2 where the reliefs were generated with TransDEM)
And here is what I get : enormous holes on the ground
An example :

Same thing from above :

Amazing, isn't it? How do we solve this problem?
As recommended, I upgraded the whole route at once to avoid this kind of defect.
Vincent
And here is what I get : enormous holes on the ground
An example :

Same thing from above :

Amazing, isn't it? How do we solve this problem?
As recommended, I upgraded the whole route at once to avoid this kind of defect.
Vincent