Layers not showing in Landscape paint

Hello, I’ve been following a tutorial regarding creating Landscape Material, and thought everything was done correctly, but when I go into Landscape → Paint, the layers are not here.
Here is my material:

Dragged it into Landscape Material:

Landscape paint:

The communicate bascially says, that this landscape does not have target layers assigned. Everyrthing, including the material has been applied and saved.
Also sorry, for the polish language, if the issue persists, I will change it to English to seek more help.