Terrain Painting not working as expected ?

I’m not sure what occurred, but an update to engine I wasn’t aware of, but I started with new terrain, and chose textures and I no longer get terrible lag at least so there is that, BUT after assigning ‘terrain’ in terrain tex. layers, it covered entire terrain, still no lat, so that’s much better, maybe an update occurred.

I got another layer working , so I guess things are working better, still not use what I did different, unless it was the textures I was using, maybe.