Hi @JustA3DMan
Let’s see…
Common Causes & Solutions
Blend Type Mismatch
Check that all the layers are compatible with the blend types they employ (such as LB Weight Blend or LB Alpha Blend).
If blending is performed incorrectly, it can override or cancel other layers.
Poor Mask Texture
Verify your mask has real visible alpha or grayscale data.
Make sure it’s not completely black (which would cause the layer to be invisible).
Weight Normalization (for Weight Blends)
All the weights must sum to 1.0 — lost or zero weights will corrupt the blend.
Layer Order Problem
Higher layers may overwrite lower ones entirely unless masked properly.
Try to reorder or change mask influence.
Too Many Texture Samplers
Adding too many textures may exceed the shader’s sampler limit and cause the material to crash.
Check material stats in the editor.
Layer Function Outputs
When using Material Layer Functions, make sure each outputs proper data (Base Color, etc.).