How many landscape materiar layers can be used?

[Gen_X]

I’m using a landscape material with 12 layers, there are some areas that can´t be painted after paint some layers.
Unpaintable areas shows a grey squares with default landscape material, not the material I made.
Anny idea or guide to paint all the landscape layers well?

I followed this guide Landscape Materials | Unreal Engine Documentation , but not explain how many layers can be used or how to fix the issue I describe above.

unpaintable areas

landscape issue, material I made and landscape default material

Landscape material with 12 layers

Funtion material

[ClockworkOcean]

You’ve run out of texture space. Click on each of the textures you’re using, and in the details, change ‘Sampler source’ from ‘from texture asset’ to ‘Shared: Wrap’.

[Gen_X]

Thank you very much, I was looking for weeks how to fix it :'v

[VSchifer27]

What if I,
m using texture object