Landmass and Patches export heightmap with Lanscape

[S6-S3]

Adding a sample CustomBrush_Landmass and LandscapeTexturePatch, then exporting the landscape heightmap file, there should be a heightmap in the output file.

But after the export output, its only grey. Only the sculp height data manually has been exported.

Help. I want to export the height map of both CustomBrush_Landmass and LandscapeTexturePatch.

[MostHost_LA]

Doesnt work that way.
Brushes do not apply to the base layer on their own.
Their whole concept is based on being non-destructive.

[Slava_Go]

In menu Landscape > Import/Export > Export, try to UNcheck Export Selected Edit Layer. It says that when it is unchecked, the height map will include all layers blended.