Materials not showing on BSP/Geometry anymore...

I’ve updated from 4.11 to 4.12.3 and now I can’t place materials on BSP/Geometry! Please Help!
I can place a few materials, but they are the default materials…

EDIT:
It seems like a problem with tesselation, but I want tesselation in my games…

I’m watching this tutorial - 4 - Applying Materials to Geometry - https://www.youtube.com/watch?v=iAMVccdXm6o&spfreload=5
And I CAN’T see the BSP tab either. I’m a total beginner so I am not sure if we are both speaking the same thing :slight_smile: