[SUPPORT] Advanced Turn Based Tile Toolkit

Hi, I’m testing the toolkit and I’m trying to do the things shown in the 4th tutorial (https://www.youtube.com/watch?v=xqVTbk-FEBU&t=440s) but for some reason the rotated tiles and the basic geometry stairs cannot be stepped on by the paws, the heightmap is in Multilevel (I’ve also tried with One Level and false and I get the same result), I ticked the decals to see if UE was recognizing the tiles and the stairs, but they aren’t working properly.
I’ve tried this in UE 4.17.2 and 4.20.0
What can I do?
I’ve also tried with a mesh I modeled on 3DS Max and it isn’t recognized by UE, the grid is floating above the mesh (Where the pawn is located is where the grid is set).
How can I fix this?