How to fix erased EA base terrain

It can be so frustrating if you're building and want to rearrange your terrain paint- and it completely erases everything and makes it look different from the world paint that is not an option in build mode.

If you accidentally erase world terrain paint that isn’t available in Build Mode, try painting over the damaged spot with one of the Stone & Pavement terrain paints, then erase that new paint while you’re still in that category. I did this in the Fairy world and the original world terrain reappeared underneath. I haven’t tested it extensively yet, but it saved my lot. Make sure you are selected only on Stone and Pavement- not grass and flowers or dirt and sand. 

I found this by accident and am so glad I did. It seems it could be a layering issue from EA and without CC i was concerned it was unfixable.