WRONG FORUM: Issue with landscape texture being blocky and black?

shearer157

Hi guys

Trying to set up a little paint texture for the painting tool in Landscapes, to attempt an oil spill.
Unfortunately, when I paint enough for it to look like a puddle (Or try anyway) it looks like these photos.
Attached the material set up (Excuse the mess, I had to fit it all in)

Any idea why its doing this and not forming a puddle?

Any help appreciated.

Thanks

EDIT; POSTED IN QUIXEL BY ACCIDENT. SORRY. Will move to Unreal instead.