TOPIC:

You should see something like the above but you need several contour rings to get a result.

Try out on an empty test project and see what you get.

Otherwise, can you email me the project so I can examine.

I am trying to model a sloping plot. I looked at the one YouTube video that shows terrain features. Can't wrap my head around it. I entered a height contour, but this causes spikes in the terrain. I expected it to be a rounded hill.

The countour lines are at 2.8m, 5, 7 and 9 meters.