Hello @Inous85
Welcome to the Unreal Forums! You can find loads of help here on almost anything related to the Unreal Engine. In regards to your issue with the auto-material not showing up, there are a few different issues that can cause that. I would start with looking into the resolutions for a similar issue in this post. Also, if you’re using Layer Blends, check and make sure that the layer names aren’t set to ‘none’. If they are, they won’t show up in your landscape painter. If that is the issue, you can give the layers name and they should appear. I hope this information helps!