Landscape Layer Blending Painting Issue

There are two issues when painting landscape layers.

• Paint: When painting between different layers, square-shaped artifacts or splotches appear.
• Fill Layer: The blended weights of other layers aren't properly cleared, preventing a complete fill.

1\. Create a third-person template project.

2. Create an empty OpenWorld level.

3. Create a simple material for landscape painting.

4. Create a landscape.

5. Create landscape layer info.

6. Paint on the landscape.