Hi, I have tried to add a heightfield File Node to import a png as a heightmap of the terrain like this:

However when I tried to use this HDA file to unity the terrain doesn't show up, and only warning was like this image:

It there any way to solve this problem? thanks!

Attachments:
terrain_base.hda (50.9 KB)
file_node.png (12.7 KB)
warning.png (46.3 KB)