I believe there is an issue with putting decals on cylinders and special meshes set to the cylinder meshtype. I am currently trying to add a decal around the edges of a cylinder(not the flat faces) and all of them seem to orient correctly except for one surface (typically the back surface).
Here is an image of what is occurring. A specialmesh set to cylinder and a cylinder part are shown.
Unless I am mistaken I believe that all of the decals should align and make a smooth texture, instead of just one of the decal’s image being flipped.
To reproduce this create a cylinder part and put 4 decals with all the same images on the top, bottom, front, and back surfaces.
This bug is occurring in studio I just noticed it today when trying to make a seamless texture go around a cylinder