For some reason I’m having issues with my landscape. If I place the material, with nothing in the "hole"selection, then only part of the landscape uses the mat. Placing the hole material in it’s selection will fill out the remainder of the landscape. (see attached screenshots)
From there it gets even stranger. If I use the same mat with the opacity setting for the normal mat and the hole mat., no holes will show up.
recommended that I post this here, as he was able to see several other bugs that I have come across.