If you use a metrics reference with @ pointing above/below paths, the layer with all the paths gets squeezed to 0 width. Of course the formula is wrong, but I suppose destroying the paths is a bug:
If you use a metrics reference with @ pointing above/below paths, the layer with all the paths gets squeezed to 0 width. Of course the formula is wrong, but I suppose destroying the paths is a bug:
Thank for reporting this. I fixed it.