[UE 5.7] Specific Landscape Layer (Layer 4) Only Paints on Base Layer, Fails to Paint Over Other Layers (LayerBlend Issue)

Hello everyone,

I am encountering an issue with my Landscape Material in Unreal Engine 5.7 where a specific layer is not painting correctly.

The Problem: My 4th layer, named “tex04”, successfully paints onto the base/default layer, but it fails to paint over any of the other layers (tex01, tex02, tex03). Layer 1, 2, and 3 can paint over the base layer and each other just fine.

Layer Type: I am using Weight-Blended Layer Info assets for all layers. (I have confirmed the Tool Strength is 1.0 and I have tried the Fill Layer tool.)

I have verified all the layers are using Weight-Blended Layer Info assets.

I have verified all the layers are using Weight-Blended Layer Info assets.

I have tried deleting and recreating the Layer Info asset

Since Layer 4 is the last entry in the blend list, it should be able to paint over all preceding layers. What setting within the LandscapeLayerBlend node, the Layer Info asset, or the engine settings could be preventing Layer 4 from painting on top of Layer 1, 2, and 3?

Thank you for your help!