Hi guys, first time I got this type of problem: 1 layer (blue color) of the landscape material are pixelated, all the other layers (gray/dev texture, green and orange) are fine, as you can see on the image below. The first try I use only const3 for the flat colours, and I got all colored layers pixelated, so I try use a white image as texture linked with the Landscape Coord, and tint this white texture with the color I want.
I dont think is the landscape resolution or texture resolution, cause all the texture images have 2048x2048, and the other layers are fine. And Im using a Recommended Landscape Sizes:
Overall size (vertices): 127x127
**Quads / section: **63
**Sections / component: **4 (2x2)
**Component size: **126x126
**Total Components: **1
All the layers info are “Weight-Blended Layer (normal)”.
I also try to use different “white texture” for each of the layers and got the same result.
Also try to use only const3 instead of a white texture + const3 to tint the white texture, and with only const3 for the flat colours without the Landscape Coord node, all layers got pixelated, except the “Dev Texture” (the gray one in the top of the material).
Engine version: 4.19
Also, same happen with the "Landscape Visibility Mask.
I have done the same question in the AnswerHub, but there I use another material, and got the same result.
Anyone know a possible fix for this? I just want flat colour landscape 
