All variants of this tail light do this when placed on a sloped surface. Seems part of the skinning needs to be fixed.
Scoops with too high poly counts, being really slow to place and manipulate:
Zoomed in on a cross section of it and it’s clearly just needlessly smooth (can’t even really notice the corners of polygons even at this zoom level)
The horizontal flipping of fixtures often seems to not working when drastically increasing the size of a fixture, just as when flipping first, the size increase eventually hits a hard limit. There’s no issue like this when rotating or vertically flipping fixtures.