Set Material node not setting materials

I’m using a Set Material node in one of my blueprints and it fails to apply material I want.

As a result I end up with no material at all on the selected part of mesh. (default grey checker thingy appears instead)

edit:

Apparently it works with some materials and doesn’t work with others. No idea what it depends on.

example:

M_Metal_Steel works fine

M_Brick_Cut_Stone doesn’t get applied

They do. The ones i mentioned are from starter content. The one I want is simple material with base color + emissive color pulsing. Also compiles with no problems.

I just discovered it’s not even blueprint problem anymore. The material doesn’t get applied manually on that mesh. Sorry - didn’t check this before posting.

The blueprint was set up properly. It’s just the mesh&materials not being compatible or whatever.

Can you check if all materials compile successful?

What material index you have on that part of mesh and what index you set in SetMaterial function?