I'm working on a fix.
In APCD it says nothing about rock in the textures or the seam blend properties.
I'm using a new seam blend to see if that makes a diff.
I've had this happen in other courses I've done.
Sage.....
If there is one thing ................ummmmmmmm.......I can't remember.
OK guys,
Give this one a try. It took me forever to get it fixed but I think this will work. It happens to be a APCD quirk that would take a short book to explain.