Stormglass left- and right-sloping inverted walls are bugged: their attachment points and orientation are different from the corresponding pieces in all other building sets. Among other things, this means you can’t place T1 inverted sloping walls and then upgrade them to stormglass. It also means you can’t use stormglass inverted sloping walls properly in many builds.
Hence my question: does anyone know of a mod that fixes that? Is this even fixable with a mod?