How slice scaled actor?

Hello. I need to cut a part of the mesh, such as a cube. The problem is that this cube has scale for example 2:1:1. I know about the procedural mesh and about its slicing, but I do not know what I need to submit to the normal. That is, if you slice a single cube, you can apply up vector blades to the normal and everything is well cut, but when the cube changes its scale, an offset occurs, and I would like to avoid this offset, but I don’t know how to do it. Thank you in advance