When first creating the terrain everything works well but if I close and reopen the project/editor, the smoothing tool tries to smooth to 0 height and flattens that part of the terrain. Is there a way to fix this?
I don't have this problem with the terrain smoother. How do you reproduce? Maybe this should be an issue on the terrain tool GitHub page.
I've found that it only works as intended when the opacity is on 100%. Also I wasn't sure where to post this issue at first but I'm going to look at GitHub.