nanite visualization only shows black screen except a specific mesh, how to fix it ?

I’m testing nanite and I realized that when I choose nanite visualization overdraw I can see nothing other than this roof tiles.
when I choose the mask option, everything is red except these roof tiles also.
trying other Maps doesn’t show anything.
these roof tiles are the only thing that is visible when I check the nanite visualization

nanite is enabled for the project and is enabled for other static meshes and I have direct x 12 as default