Others find, but their scene is broken, for some reason.
I already fixed 5 or 6 scenes, now and I'd like to fix even more
Just post your scene here, or if it's a secret, pm me the scene
I can't guaranty for your scenes for 100%, so definately make a safety copy and don't erase your scene, when you gave me one.
I basically check all the normals, search for possibiities in instancing, add thickness, where needed, rescale the scene and such stuff...
All of theses can be done yourself, but if you don't have time, you can give it to me
just be sure not to send it back more borken