Terrain full of slopes and not flat when loading a project

[MSFS 2020] Questions & Community Discussions Airports & Sceneries
1

Terrain full of slopes and not flat when loading a project. Closing the
projects and re opening them is a workaround

1283×832 695 KB

1052×818 1.67 MB

2

Anyone can help with this?

3

I would love to know how to stop this, but I never have. It’s been doing it
since the sim launched. Sometimes I have to waste 5 or more hours returning
the terrain to something like normal, and it still looks worse than the
original unmodified version. It varies from site to site. You could try adding
and then deleting a rectangle which in some cases instantly returns the
terrain to normal. It doesn’t always work though.