Sometimes when you apply a pixelated texture that is a png file from minecraft or blockbench and apply it to a mesh, it gets white - gray lines on the mesh. Other softwares like blender don’t have this, it only happens on roblox
Hey, Mind showing the UV and texture for this model?
I don’t wanna be the one to break the news, but that effect is called “texture bleeding” and it’s happening because of the way roblox renders stuff.