When a redstone ladder is made out of Target blocks, a non transparent block, the redstone texture is visible on the vertical of the target block as if it can transfer the redstone signal as seen in IMG_3333. This is only a visible bug, not functional. Additionally when such a ladder is built with piston, the dust texture isn’t on the side of the block as seen in IMG_3333. The glass is for reference how the vertical dust should look.