When a trail’s TextureMode is set to Stretch and TextureLength is set to 1 and the texture hugs any of the edges, it wraps around to the opposite side of the trail a bit.
From left to right: Texture > How I expect it to look > How it actually looks.
TrailBug.rbxl (15.5 KB)
Just play it or move the parts up and down.
I know this probably happens because the texture is set to repeat for TextureLength, but it’d be nice if it clamped instead when it’s <=1.